“Humanity must suffer very much before it comes to an understanding of the advantage of unity.”

Memoirs of Childhood and Youth (1924)

Civilized Man's Eight Deadly Sins (1973)

"Education for Independent Thought" in The New York Times, 5 October 1952. Reprinted in Ideas and Opinions (1954)
1950s
Context: It is not enough to teach a man a specialty. Through it he may become a kind of useful machine but not a harmoniously developed personality. It is essential that the student acquire an understanding of and a lively feeling for values. He must acquire a vivid sense of the beautiful and of the morally good. Otherwise he—with his specialized knowledge—more closely resembles a well-trained dog than a harmoniously developed person. He must learn to understand the motives of human beings, their illusions, and their sufferings in order to acquire a proper relationship to individual fellow-men and to the community. These precious things are conveyed to the younger generation through personal contact with those who teach, not—or at least not in the main—through textbooks. It is this that primarily constitutes and preserves culture. This is what I have in mind when I recommend the "humanities" as important, not just dry specialized knowledge in the fields of history and philosophy.

Source: A Letter to a Hindu (1908), VI

Source: "The Black Manifesto" (1969), p. 116

Day of Affirmation Address (1966)
Context: The road toward equality of freedom is not easy, and great cost and danger march alongside us. We are committed to peaceful and nonviolent change, and that is important for all to understand — though all change is unsettling. Still, even in the turbulence of protest and struggle is greater hope for the future, as men learn to claim and achieve for themselves the rights formerly petitioned from others. And most important of all, all of the panoply of government power has been committed to the goal of equality before the law, as we are now committing ourselves to the achievement of equal opportunity in fact. We must recognize the full human equality of all of our people before God, before the law, and in the councils of government. We must do this, not because it is economically advantageous, although it is; not because the laws of God command it, although they do; not because people in other lands wish it so. We must do it for the single and fundamental reason that it is the right thing to do.

p 148-149
Embassytown (2011)

" Principles for Dealing with the Changing World Order by Ray Dalio https://www.youtube.com/watch?v=xguam0TKMw8" (at 7m19s), Principles by Ray Dalio, 2 March 2022.