Karl Popper, summarizing some of Kant's philosophy, in The Open Society and Its Enemies (1945, p. 102; part of this has sometimes been treated as if it were a direct quote of Kant: Always recognize that human individuals are ends, and do not use them as means to your end.

Individualism, united with altruism, has become the basis of our western civilization. It is the central doctrine of Christianity ('love your neighbor,' say the Scriptures, not 'love your tribe'); and it is the core of all ethical doctrines which have grown from our civilization and stimulated it. It is also, for instance, Kant's central practical doctrine ("always recognize that human individuals are ends, and do not use them as mere means to your end.")

— Karl Popper

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "Individualism, united with altruism, has become the basis of our western civilization. It is the central doctrine of Christianity ('love your neighbor,' say the Scriptures, not 'love your tribe'); and it is the core of all ethical doctrines which have grown from our civilization and stimulated it. It is also, for instance, Kant's central practical doctrine ("always recognize that human individuals are ends, and do not use them as mere means to your end.")" in the context of "Karl Popper, summarizing some of Kant's philosophy, in The Open Society and Its Enemies (1945, p. 102; part of this has sometimes been treated as if it were a direct quote of Kant: Always recognize that human individuals are ends, and do not use them as means to your end." to mean that wisdom is timeless.

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Source: Wikiquote: "Immanuel Kant" (Quotes about Kant: Alphabetized by author ) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
Immanuel Kant

About Immanuel Kant

Immanuel Kant (22 April 1724 – 12 February 1804), born Emanuel Kant, was a German philosopher.