I had to make a confession of faith in stone. That was the beginning of the tower, the house I built for myself at Bollingen.

The great problems of life — sexuality, of course, among others — are always related to the primordial images of the collective unconscious. These images are really balancing or compensating factors which correspond with the problems life presents in actuality. This is not to be marveled at, since these images are deposits representing the accumulated experience of thousands of years of struggle for adaptation and existence.

The brain is viewed as an appendage of the genital glands.

I shall not commit the fashionable stupidity of regarding everything I cannot explain as a fraud.

An understanding heart is everything in a teacher, and cannot be esteemed highly enough.

The dynamic principle of fantasy is play, a characteristic also of the child, and as such it appears inconsistent with the principle of serious work. But without this playing with fantasy no creative work has ever yet come to birth. The debt we owe to the play of imagination is incalculable. It is therefore short-sighted to treat fantasy, on account of its risky or unacceptable nature, as a thing of little worth.

I can still recall vividly how Freud said to me, "My dear Jung, promise me never to abandon the sexual theory. That is the most essential thing of all. You see, we must make a dogma of it, an unshakable bulwark" ... In some astonishment I asked him, "A bulwark-against what?" To which he replied, "Against the black tide of mud"-and here he hesitated for a moment, then added of occultism.