“This is the Exact Center of the Universe.”

1950s, Conquering Self-centeredness (1957)
Context: For a long time, man felt that he was the center of the universe and all of his science had given him that. All of the days in the past he came up under what was known as the geocentric theory: the earth was the center of the universe and everything revolved around the earth. Then came Copernicus and Galileo and others, said that the sun is the center, the heliocentric theory came into being. And that reminded us somehow that we are dependent on something. We are not just at the center of this universe. We are only at the center to the extent that we give ourselves and our allegiance to God Almighty. And I’m so glad that the new science came into being to dampen our arrogance. It says to us that our earthly planet is a dependent planet; it is a small planet in the orbits of this universe. The sun is the center of this universe, that man must look beyond himself to discover his significance. And that does something to each of us so that we can see when we have faith in God that we have nothing to boast about, we have nothing to be arrogant about but we live with a humility that keeps us going.

As quoted in The Copernican Revolution : Planetary Astronomy in the Development of Western Thought (1957) by Thomas S. Kuhn
Context: Finally we shall place the Sun himself at the center of the Universe. All this is suggested by the systematic procession of events and the harmony of the whole Universe, if only we face the facts, as they say, "with both eyes open."

Bennington College address (1970)
Context: The arts put man at the center of the universe, whether he belongs there or not. Military science, on the other hand, treats man as garbage — and his children, and his cities, too. Military science is probably right about the contemptibility of man in the vastness of the universe. Still — I deny that contemptibility, and I beg you to deny it, through the creation of appreciation of art.

Source: The Serpent's Shadow

An Idealist View of Life (1929)
Internet Encyclopedia of Philosophy
Context: Feeling the unity of himself and the universe, the man who lives in spirit is no more a separate and self-centered individual but a vehicle of the universal spirit. [Like the artist, the moral hero does not turn his back on the world. Instead], He throws himself on the world and lives for its redemption, possessed as he is with an unshakable sense of optimism and an unlimited faith in the powers of the soul.

Matt. xvi. 26
The Tragic Sense of Life (1913), III : The Hunger of Immortality

The Sacred Pipe (1953)
Context: The first peace, which is the most important, is that which comes within the souls of people when they realize their relationship, their oneness, with the universe and all its powers, and when they realize that at the center of the universe dwells Wakan-Tanka, and that this center is really everywhere, it is within each of us. This is the real peace, and the others are but reflections of this. The second peace is that which is made between two individuals, and the third is that which is made between two nations. But above all you should understand that there can never be peace between nations until there is known that true peace, which, as I have often said, is within the souls of men. <!-- p. 115

The Hidden Heart of the Cosmos (1996)

Bk. 3, Ch. 4
Little, Big: or, The Fairies' Parliament (1981)
Context: The immense laughter of Bruno when he understood that Copernicus had inverted the universe — what was it but joy in the confirmation of his knowledge that Mind, in the center of all, contains within it all that it is the center of? … the Universe exploded into infinitude, a circle of which Mind, the center, was everywhere and the circumference nowhere. The trick-mirror of finitude was smashed, Bruno laughed, the starry realms were a jewelled bracelet in the hand.