“I find relief from the questions only when I concede that I am not obliged to know everything. I remind myself it is sufficient to know what I know, and that what I know, may not always be true.”

Autobiography of Values (1978)
Context: I know myself as mortal, but this raises the question: "What is I?" Am I an individual, or am I an evolving life stream composed of countless selves? … As one identity, I was born in AD 1902. But as AD twentieth-century man, I am billions of years old. The life I consider as myself has existed though past eons with unbroken continuity. Individuals are custodians of the life stream — temporal manifestations of far greater being, forming from and returning to their essence like so many dreams. … I recall standing on the edge of a deep valley in the Hawaiian island of Maui, thinking that the life stream is like a mountain river — springing from hidden sources, born out of the earth, touched by stars, merging, blending, evolving in the shape momentarily seen. It is molecules probing through time, found smooth-flowing, adjusted to shaped and shaping banks, roiled by rocks and tree trunks — composed again. Now it ends, apparently, at a lava brink, a precipitous fall.
Near the fall's brink, I saw death as death cannot be seen. I stared at the very end of life, and at life that forms beyond, at the fact of immortality. Dark water bent, broke, disintegrated, transformed to apparition — a tall, stately ghost soul emerged from body, and the finite individuality of the whole becomes the infinite individuality of particles. Mist drifted, disappeared in air, a vanishing of spirit. Far below in the valley, I saw another river, reincarnated from the first, its particles reorganized to form a second body. It carried the same name. It was similar in appearance. It also ended at a lava brink. Flow followed fall, and fall followed flow as I descended the mountainside. The river was mortal and immortal as life, as becoming.

RS. Issue 858/859.

Source: As quoted in No Easy Answers: The Truth Behind Death at Columbine https://books.google.com/books?id=kI4YwhBD7FgC&pg=PA149 (2002), by Brooks Brown and Rob Merritt, New York: Lantern Books, p. 149

Letter to his brother Rev. William N. Cleveland (7 November 1882); published in The Writings and Speeches of Grover Cleveland (1892), p. 534.
Context: I feel as if it were time for me to write to someone who will believe what I write.
I have been for some time in the atmosphere of certain success, so that I have been sure that I should assume the duties of the high office for which I have been named. I have tried hard, in the light of this fact, to appreciate properly the responsibilities that will rest upon me, and they are much, too much underestimated. But the thought that has troubled me is, can I well perform my duties, and in such a manner as to do some good to the people of the State? I know there is room for it, and I know that I am honest and sincere in my desire to do well; but the question is whether I know enough to accomplish what I desire.
The social life which seems to await me has also been a subject of much anxious thought. I have a notion that I can regulate that very much as I desire; and, if I can, I shall spend very little time in the purely ornamental part of the office. In point of fact, I will tell you, first of all others, the policy I intend to adopt, and that is, to make the matter a business engagement between the people of the State and myself, in which the obligation on my side is to perform the duties assigned me with an eye single to the interest of my employers. I shall have no idea of re-election, or any higher political preferment in my head, but be very thankful and happy I can serve one term as the people's Governor.

When asked about listening to yourself.
Company Rules Interview https://companyrules.home.blog/2019/05/27/welcome-guest-dj-antonio-fresco/ (2019)

Source: The Wedding

Source: The Ruling Class: A Baroque Comedy

On how envisioning an ending allows him to conclude each character’s journey in “Extended interview: Colson Whitehead on writing ‘The Nickel Boys’" https://www.cbsnews.com/news/extended-interview-colson-whitehead-on-writing-the-nickel-boys/ in CBS News (2019 Jul 14)