I do believe in this evolution of consciousness as the only thing which we can embark on, or in fact, willy-nilly, are embarked on; and along with that will go the spiritual discoveries and, I feel, the inexhaustible wonder that one feels, that opens more and more the more you know. It's simply that this increasing knowledge constantly enlarges your kingdom and the capacity for admiring and loving the universe.

The Paris Review interview (1963)