Peter Drucker’s Most Frequent Comment

William A. Cohen Ph.D.

PUBLISHED:

November 17, 2023

Drucker said and wrote so much that was wise, profound, valuable, and witty that he may have more quotes attributed to him than any other management thinker of modern times. However, the most frequent comment he made during my acquaintance with him was “What everyone knows is usually wrong.” His continued use of this phrase clearly meant that he not only believed it strongly, but considered it important. Yet until I wrote it in my first book about Drucker, A Class with Drucker, I never saw it in print.

 

Drucker was Right


Through repetition I finally began to think more deeply about what his words really meant. This simple statement is not only true; it is immensely valuable in a variety of instances, especially now when various questionable comments are expressed as fact on TV and elsewhere. What Drucker wanted to emphasize was that we must always question all assumptions no matter from where they originate or how obvious they may first appear. This is especially true regarding anything that a majority of people “know” or assume without analysis or further questioning. This “knowledge” should always be suspect and needs to be examined much more closely, because in a surprisingly high percentage of cases, the information “known to be true” will turn out to be only partially true, inaccurate, or a complete falsehood. This is especially true during a war when one side or another may falsify information to put themselves in a more favorable light, and their adversary in a poor one. If you can get many people to announce something as fact repeatedly, many will believe it because “everyone knows it to be true.”

 

The current war which Israel is fighting with Hamas terrorists is an example. Hamas terrorists attacked an Israeli group of several thousand partying men, women, and children in a peace celebration without warning, shooting parents in front of their children, raping women, even murdering children by beheading, burning others alive and taking over 200 hostages. We know this to be true, and not only from survivors because Hamas filmed these actions themselves, thinking to intimidate Israelis and others and so released the films of their actions to be shown to the world.

 

Hamas later announced that Israel had intentionally bombed a major hospital causing hundreds of deaths. The Israelis denied this. They said that likely an errant rocket fired by the Palestinian terrorist group the Islamic Jihad had fallen short and caused the hospital explosion. This was confirmed several days later after U.S. experts and others had examined the data. However, many countries and even many entities in the U.S. including students and professors at prominent universities believed this false information, repeated it, and demonstrated in favor of the terrorists and the false information quickly spread around the world with most  never waiting for  the results of a close examination of the facts by other parties. By the time the truth of Israel’s complete innocence was known definitively, “everyone knew” that Israel was guilty even though that was false.

 

 

Is What Everyone Knows Usually, Sometimes, or Never Wrong?


Of course there are many old “truisms” once thought by everyone to be true, which we laugh at today. “The world is flat” or “The earth is the center of the universe” are typical. If you publicly doubted some of these false facts which “everyone knew” in past centuries, you could be sent to prison or burned as a witch. Many were. The French heroine Joan of Arc is a well-known example.

 

The ancient Greeks knew that everything was made up of only four elements: earth, air, fire, and water. I don’t think that you got imprisoned or killed for believing otherwise, but you were at the very least thought ignorant.

 

In modern times we learned that these views were mistaken. When I took chemistry in high school, I learned that a Periodic Table of Elements had been formulated by the Russian chemist and inventor, Mendeleev and that it had been established that there were exactly 93 elements which were arranged by atomic mass. You got an “A” if we could name them all.  Had we proposed that there could be more, I am certain that we would have been immediately corrected by our teachers. In the words of Richard Rodgers and Oscar Hammerstein in Oklahoma, things “had gone about as far as they could go.” Today, there are 102 elements, maybe even more --- I didn’t check this morning.  And they forgot to tell is that Mendeleev had only envisioned 63 elements . . . the other thirty hadn’t been discovered yet in his time.

 


Elementary, my dear Watson


For over sixty years we’ve seen a lot in the movies or TV regarding Arthur Conan Doyle’s famous detective, Sherlock Holmes. Everyone knows Sherlock’s most famous utterance was a sentence consisting of only the four words, “Elementary, my dear Watson.” Everyone knows that the famous detective would respond with these words on Dr. Watson’s surprise at a particularly shrewd and unexpected deduction made by Holmes. Maybe everyone knows this, but everyone is wrong. As pointed out by Paul F. Boller, Jr. and John George in their book, They Never Said It (Oxford University Press, 1989), Holmes didn’t utter the immortal words in a single instance in anything ever written by Doyle, not in any of Doyle’s four published novels and fifty-six short stories about the adventures of Sherlock Holmes and his side-kick and physician friend, Dr. John H. Watson. Wherever then did people ever come up with such universally believed, but incorrect bit of knowledge?  If not Doyle’s literary character, who did utter these immortal words? It was the English actor, Basil Rathbone playing the part of Sherlock Holmes in Hollywood movies that responded with the famous sentence, not Doyle’s character in anything he ever wrote. These words seemed to fit the character of Holmes perfectly in those days on the silver screen, and though not emanating from Doyle’s creation, it became a known “fact” that it did.

 

Analyze Every Assumption


Many years ago, I was involved in the selection of one of two designs for a new aircraft from two different companies for the Air Force. The companies were The Boeing Aircraft Company and McDonnell-Douglas Aircraft Company. Those who know this industry also know that the former company eventually acquired the latter, but this has nothing to do with my story here. Both companies proposed modifying one of their standard airline designs, which was already in production and in use.

 

Periodically we would meet with each aircraft company’s design team individually to assess progress on each company’s proposals, the acceptance of which would be worth hundreds of millions of dollars to the winning contractor.

 

On one occasion we met to discuss ways in which we might lower the cost of each aircraft. The suggestion came from the McDonnell-Douglas manager (although, getting ahead of my story, it was the other contractor who ultimately won the contract). He said: “You can save several million dollars for each aircraft produced if you will allow us to deviate on the size of the escape hatch by about two inches. That would be the standard size of the hatch of current airliners. They successfully passed all FAA tests with no problems.” I promised to look into his request as it could save a lot of money.

 

Is the Source Valid?


Both reliability and validity are concepts that come from testing. The validity of a test tells us how well the test measures what it is supposed to measure. It is a judgment based on evidence about the appropriateness of inferences drawn from test scores. But we’re not looking at test scores here, we’re looking at assumptions. So where did this specification in the aircraft design handbook come from? Knowing that source could help me decide whether this specification was valid for the aircraft we now wanted to build. We still hadn’t located the original source for this information.

 

So, I looked further. I knew that every specification in the aircraft design handbook was referenced as to where it came from and what it was based on. Making this a requirement was good thinking. Usually, they were based on the original tests performed. I asked the engineer to do the necessary research to find out what tests this design specification was based on and when they were accomplished. Surprise, surprise, this specification was based on an aircraft test done with propeller-driven aircraft almost thirty years earlier. That aircraft traveled at about 120 miles per hour. The aircraft we were working on traveled at about 500 miles per hour. Obviously, in this instance, the design specification was not valid. We turned it over to one of our aeronautical designers. He advised us to forget what everyone knew (the design handbook) and the two inches at the air speeds we were anticipating for an emergency bailout would make no difference at all. We took his advice and saved the money. We need to do this with all claims that come with no proof other than “everybody knows.”


By Linda Megerdichian November 15, 2025
Last semester, two students approached me to advise their AI-based graduate projects at a time when no one else in the department was available or willing to take them on. Our department lacked sufficient faculty with software or AI specialization at the time to support the growing number of requests in this area. I decided to take on the projects and serve as their advisor. I was honest with them from the beginning and told them that I had no prior experience in training machine learning models. Still, I said that if they were willing to put in the effort, I would learn alongside them and support them every step of the way. Both students wanted to build careers in AI, and I knew that their graduate projects could set the tone for the opportunities ahead. I have always believed it is my responsibility to open doors for my students, even when the path ahead is uncertain. Although I understood how the overall system architecture should be designed, I was learning the rest in real time just like them. Others advised me not to take the risk, but I believed in their determination and their right to pursue ideas they were genuinely passionate about rather than what was convenient for faculty. Today, both students successfully demonstrated their projects, and I could not be prouder of what they had accomplished. When I think about this experience, I am reminded of Peter Drucker’s view that leadership is not rank or privilege; it is responsibility. He often wrote that a leader’s first duty is to help others perform to the best of their abilities. That means creating conditions where people can discover what they are capable of, not directing them from above, but believing in them enough to let them try. In this small lab moment, I saw that principle come alive. I did not have the answers, and they knew it. But leadership, as Drucker would say, is not about knowing everything. It is about doing the right thing, even when it means stepping into uncertainty. Trust replaced control. Curiosity replaced expertise. And in that space, both students grew, and so did I. Drucker believed the most effective organizations are those built on mutual trust, where authority is replaced by responsibility, and learning is shared across all levels. That day in the lab, I realized that education itself is one of the purest forms of management, not managing systems or people, but managing potential. Sometimes, the best leadership lesson does not come from a management book. It comes from saying yes when it would have been easier to say no, and discovering that faith in others is the most powerful management tool of all.
By Robert Kirkland Ph.D. November 4, 2025
When Marc Benioff founded Salesforce in 1999, Silicon Valley had a pretty straightforward playbook which was technological disruption at any cost. Profit, scale, and market capture dominated corporate ambition. Benioff, who worked under Steve Jobs at Apple and explored Buddhist philosophy, was not satisfied with that approach. He envisioned a company that would not only revolutionize enterprise software through the cloud but also redefine the social purpose of business itself. His leadership at Salesforce reflects Peter Drucker's concept of Management as a Liberal Art (MLA). This idea holds that management is not just about efficiency or growth, but about making work human, creating meaning, and building institutions that serve society (Drucker, 1989). Philanthropy as Structure From Salesforce’s inception, Benioff took an unusual approach. He instituted the “1-1-1 model”, pledging one percent of company equity, product, and employee time to philanthropy. This simple yet radical idea embedded social responsibility into the company’s DNA, ensuring that business success translated into community benefit (Salesforce, 2021). Peter Drucker made a similar point in The Concept of the Corporation (1946). He argued that companies cannot operate as "islands of profit" detached from their communities. Benioff's model, now replicated worldwide through the Pledge 1% movement, demonstrates that corporate citizenship can be institutionalized, not just idealized. By formalizing philanthropy as part of corporate structure rather than discretionary charity, Salesforce gave proof to Drucker’s claim that companies can serve as stabilizing social institutions. Human-Centered Leadership Drucker emphasized that management is a humanistic discipline requiring both knowledge and self-awareness. Benioff has consistently modeled this through self-reflection and moral grounding. As a long-time advocate of mindfulness and meditation, he integrates spiritual awareness with corporate purpose. In Trailblazer (2019), Benioff reflects on how introspection informs strategic clarity and ethical leadership. Compassion is a core managerial value for Benioff. This aligns with Drucker’s insistence that good leaders must "engage the whole human being," acknowledging both rational capability and emotional complexity. In cultivating mindfulness as an organizational practice, Benioff turns what Drucker called “self-knowledge” into a shared institutional expectation, not a private exercise. Stakeholder Capitalism in Practice Perhaps Benioff’s most significant Druckerian contribution is his public challenge to shareholder primacy. As a high-profile advocate of stakeholder capitalism, he has urged fellow executives to view not just investors, but also customers, employees, communities, and the planet as legitimate stakeholders in corporate decision-making. Drucker anticipated this shift in 1999 when he argued that institutions must balance individual rights with broader social responsibilities, and that leadership must be anchored in moral purpose rather than short-term gain. Benioff operationalized this at Salesforce by making equality, climate action, and community impact strategic priorities alongside financial metrics. Salesforce has built environmental and social-impact objectives into its leadership accountability and public reporting, positioning those outcomes as core measures of performance rather than PR exercises. In Drucker's terms, this marks a shift from a purely economic mandate to an explicitly ethical one. Building a Meaningful Culture At Salesforce, Benioff’s internal culture emphasizes equality, diversity, and trust. His mantra of “Ohana” a Hawaiian term for family defines the company’s social ethos. Through listening sessions, employee councils, and direct engagement with staff, Benioff attempts to cultivate what Drucker would call a functioning institution: a place where individuals are offered both status and function, and where they derive meaning through active contribution. One concrete expression of this philosophy is Salesforce’s repeated company-wide pay equity audits. The company has publicly acknowledged compensation gaps across gender and race and then allocated millions of dollars to close them. This reflects Drucker’s view that organizations must respect human dignity and align personal fulfillment with collective mission. Benioff’s conviction that fairness can be measured and corrected turns theory into everyday management practice. Balancing Technology and Humanity In Post-Capitalist Society (1993), Drucker identified the rise of the knowledge worker as a defining feature of modern institutions. Salesforce, as a platform for digital collaboration across sales, service, marketing, analytics, and commerce, is organized around those workers. But Benioff’s management philosophy resists the idea that productivity can be reduced to code and dashboards. He argues that innovation begins in empathy and trust, not automation, which echoes Drucker’s warning that management cannot dissolve into technique. At the same time, Salesforce has embraced artificial intelligence through Einstein GPT and autonomous AI agents to automate routine tasks. While this automation has replaced certain roles, Benioff has publicly insisted that human connection remains irreplaceable in high-value work such as enterprise sales, and Salesforce is simultaneously hiring thousands of additional salespeople. By automating repetitive tasks while elevating distinctly human work, Benioff is enacting Drucker’s belief that technology must remain subordinate to judgment, responsibility, and moral purpose (Drucker, 1990). His leadership has also demonstrated Drucker’s axiom that effective management requires balancing continuity with change. Continuity and Change Over two decades, Salesforce has evolved from a single product - customer relationship management delivered via the cloud - to a global platform ecosystem spanning analytics, integration, AI, collaboration, and industry-specific solutions. Yet it’s core values; trust, customer success, innovation, and equality have remained remarkably consistent. The COVID-19 pandemic highlighted this balance. Salesforce mobilized its logistics network and relationships to support public health responses, sourced and donated medical equipment, and repurposed internal systems to help governments and hospitals. Simultaneously, it accelerated digital transformation for its customers, positioning the company as both economic actor and civic partner. This is management serving society not just stakeholders. Moral Stewardship and Systems Thinking A key aspect of Drucker’s MLA is its interdisciplinary nature. He describes management as a liberal art because it must draw on ethics, psychology, economics, history, and even theology to exercise wise judgment (Drucker, 1989). Benioff exemplifies this approach. He openly blends spiritual language, social justice arguments, civic activism, and technology strategy. He links corporate tax policy to homelessness and public health, climate action to fiduciary duty, and workforce equity to innovation capacity. This is not accidental rhetoric. It is an attempt to widen the frame of what “business leadership” is allowed to talk about. And in doing so, Benioff turns the CEO role into something closer to what Drucker called moral stewardship: the active use of organizational power to strengthen society’s fabric. A Model for the 21st Century Drucker argued that a functioning society depends on institutions that foster responsible citizenship, provide meaningful work, and accept obligations beyond profit. Salesforce’s global initiatives illustrate this principle. Its Climate Action Plan, net-zero commitments, LGBTQ+ advocacy, and Pledge 1% expansion reinforce that corporations can be both market leaders and social institutions. Benioff sees business as a primary vehicle for delivering resources, talent, and problem-solving at scale to communities. Marc Benioff’s work at Salesforce is one of the clearest contemporary examples of Management as a Liberal Art. Through empathy, ethical reflection, institutional responsibility, and systemic awareness, Benioff has redefined 21st century management. Like Drucker, he views organizations as moral communities’ arenas for both performance and purpose. In an era of automation, widening inequality, and environmental crisis, Benioff believes that capitalism can be rehabilitated, but only if leaders understand management not as control, but as stewardship. The liberal art of management is not an outdated ideal; it is a living practice and essential for the legitimacy of business itself.  References Benioff, M. (2019). Trailblazer: The power of business as the greatest platform for change. Currency. Drucker, P. F. (1946). The concept of the corporation. New York: The John Day Company. Drucker, P. F. (1989). The new realities: In government and politics, in economics and business, in society and world view. New York: Harper & Row. Drucker, P. F. (1990). Managing the non-profit organization. New York: HarperBusiness. Drucker, P. F. (1993). Post-capitalist society. New York: HarperBusiness. Drucker, P. F. (1999). Management challenges for the 21st century. New York: HarperBusiness. Salesforce. (2021). Philanthropy and the 1-1-1 model. https://www.salesforce.com/company/philanthropy/
By Michael Cortrite Ph.D. November 4, 2025
What is Soft Power? A relatively new concept in the field of leadership is soft power. The term was coined in 1990 by Joseph S. Nye, a leading architect of U.S. foreign policy for six decades. He worked for two U.S. presidents and served as dean of Harvard’s Kennedy School of Government for a decade. Nye believed that whatever helped the world helped the United States. Soft power refers to an organization’s or country’s ability to influence others through attraction rather than coercion or payment. A good example is the aid that the United States gives to other poorer nations to alleviate disease, hunger, poverty, and illiteracy. Nye also discussed “smart power,” which involves using both hard power (military or political might) and soft power. (Nye, 1990). In furtherance of a more peaceful world, the question is whether we want leaders who are oblivious to the effectiveness of soft power and instead use hard power to coerce, threaten, and force people, or leaders who use both soft and hard power to help people. In the short term, hard power typically prevails over soft power, but in the long term, soft power often prevails. Hard power is a short-term solution, whereas soft power has long-lasting results. (Nye, 2025). Clearly, soft power can be more effective for accomplishing goals in many circumstances. However, there are times when hard power can be used in conjunction with soft power — the concept known as smart power — to be more effective in influencing the behavior of others. Sometimes people are attracted to or intimidated by threatening or bullying behavior (hard power). In this case, hard power is more effective because people fear the negative consequences of speaking out against the people in power (Tanis et al. 2025). An example of the failure of hard power can be seen in the United States’ invasion of Iraq in 2003, intended to limit terrorism. The invasion itself, along with brutal images of Abu Ghraib prison and the imprisonment of suspected terrorists in Guantanamo Bay Prison without any due process, was shown to increase the recruitment of more terrorists (Nye, 2008). Another example of potential real-life consequences of a leader choosing between hard power and soft power is reported in Foreign Policy Magazine (2025): Joseph Nye was dismayed that the new administration in Washington was using the hard power tactics of threatening, bullying, and ordering, along with canceling the soft power accomplishments of U.S. foreign aid programs. He predicted that they were ceding a United States-led world to one dominated by China, because China understands the potential of soft power. Apparently, the current administration does not. Veteran journalist Andreas Kluth (2025) notes that the United States Agency for International Development (USAID) is one of the most effective examples of the United States' soft power. It is best known for its humanitarian efforts to combat AIDS, malaria, and starvation abroad. It is estimated that without the work of USAID, an additional 14 million deaths will occur in the next five years. Almost as bad as the deaths is that the goodwill created in numerous foreign countries will be gone. Kluth and the United States Senate Foreign Relations Committee (2025) are concerned that China will be stepping into the void of losing USAID. They warn that China now has more soft power than the United States and outspends the United States in foreign aid 40 to 1 in its pursuit of world domination (Kluth 2025). In this regard, Blanchard and Lu (2012) point out a weakening of U.S. soft power since the terrorist attacks of September 11, 2001, the US invasion of Iraq, and continuing unilateralism of the United States. Peter Drucker Drucker was born in Vienna, Austria, in 1909, and as a young man witnessed Europe being taken over by the totalitarian, fascist regime of Adolph Hitler starting in the mid to late 1920s and Hitler’s being elevated to Chancellor of Germany in 1933. Drucker knew firsthand that totalitarianism hurts people, and he spent much of his life analyzing its causes and cautioning people against it. According to Drucker, people will not willingly allow their country to become totalitarian if society gives all people status, dignity, respect, and a meaningful place in society. Drucker called this a functioning society. He advocated for a people-centric approach in leadership, where people were given autonomy and no one was left behind or abandoned by society. Although Peter Drucker did not use the term "soft power," upon examining his writings and life’s work, it is clear that he preferred the use of soft power over hard power. His classic invention of Management by Objectives, which gives employees considerable autonomy, is a prime example of soft power (Drucker 1954). He felt that companies had a social dimension as well as an economic purpose (Drucker 1942). He wanted companies to treat workers as an important resource, rather than solely as a cost (Drucker 1993). Drucker would disapprove of the most powerful democracy in the world ceding its world leader status to a totalitarian country, China. The fear is that China being seen as the world leader might influence or encourage other countries to allow dictatorial and autocratic governance (Shlapentokh 2021).  Bardy et al. (2010), in their study of Peter Drucker and ethics in the United States and Europe, posit that Drucker’s good ethics in business efforts ensure that society is being served and that change efforts are successfully brought about by adhering to Drucker’s discourse and right behavior. They said that Drucker was caring and ethical in his treatment of managers and employees, much like a leader who prefers soft power. Drucker was quoted as quoting William Norris; “The purpose of a business is to do well by doing good” (p. 539). Showing his preference for doing good for people demonstrates care ethics (Coorman, 2025), which is mostly what soft power is entails. Conclusion Peter Drucker is renowned for his ability to predict future trends in various domains, including business, economics, and society (Cohen, 2012). Currently, the world seems to be at a crossroads: Will democracy survive? Will we learn how to communicate with each other? We need to remember the wise and ethical teachings of Peter Drucker, especially on the effectiveness of using soft power. Drucker’s blend of practical management advice with profound ethical underpinnings underscores his status as a thought leader who not only understood the mechanics of management but also engaged with the moral implications of leadership within complex societal frameworks. References Bardy, R. & Rubens, A. (2010). Is There a Transatlantic Divide?: Reviewing Peter F. Drucker’s Thoughts on Ethics and Leadership of U.S. and European Managers. Management Decision. Vol. 48. Iss. 4. 528-540. DOI:10.1108/00251741011041337. Cohen, W. (2012). Drucker on Marketing: Lessons from the World’s Most Influential Business Thinker. McGraw Hill. Coorman, L. 2025. Soft Power. Master’s Thesis. Indiana University, Herron School of Art and Design. 2025. https://hdl.handle.net/1805/50513 Drucker, P, (1942). The Future of Industrial Man. Mentor Book/New American Library. Drucker, P. (1954). The Practice of Management. Harper & Row. Drucker, P, (1993). The Concept of the Corporation. Routledge. Kluth, A. 2025. How the U.S. is Making China Great Again. The Week. Iss. 12. Aug 2, 2025. Nye, J. (1990). Bound to Lead: The Changing Nature of American Power. Basic Books. Nye, J. (2008). Soft Power. Leadership Excellence. Vol. 25. Iss. 4. April 2010. Nye, J. 2024. Invest in Soft Power. Foreign Policy. Sept. 9. https://foreignpolicy.com/2024/09/09/us-soft-power-culture-political-values-democracy-human-rights/ Nye, J. (2025). Obituary. Los Angeles Times, 5/21/25 p. 11. Shlapentokh, D. 2021. Marxism and the Role of the State in the Soviet and Chinese Experience. International Journal of China Studies. Vol. 12. Iss. 1. (Jun. 2021) 157-186. https://2q21dwppn-mp03-y-https-www-proquest-com.proxy.lirn.net/scholarly-journals/marxism-role-state-soviet-chinese-experience/docview/2565686898/se-2. Tanis, F. and Emanuel, G. 2025. To Speak or not to Speak: Why Many Aid Groups are Silent about the Trump Cuts. NPR Weblog Post. August 1, 2025. https://www.proquest.com/abitrade/blogs-podcasts-websites/speak-not-why-many-aid-groups-are-silent-about/docview/3235492953/sem-2?accountid=150887
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