The Christian religion seems to have fulfilled its great biological purpose, in so far as we are able to judge. It has led human thought to independence, and has lost its significance, therefore, to a yet undetermined extent.... It seems to me that we might still make use in some way of its form of thought, and especially of its great wisdom of life, which for two thousand years has proven to be particularly efficacious. Psychology of the Unconscious

It is a great folly to lose the inner man in order to gain the outer, that is, to give up the whole or the greater part of one's quiet, leisure, and independence for splendour, rank, pomp, titles and honours. Parerga and Paralipomena

“It is an iron rule of history that what looks inevitable in hindsight was far from obvious at the time.” Sapiens: A Brief History of Humankind

“I have spent all my life resisting the desire to end it.” Letters To Milena