Crystals reveal their hidden structures only when broken.

A strong egoism is a protection against disease, but in the last resort we must begin to love in order that we may not fall ill, and must fall ill if, in consequence of frustration, we cannot love.

One must learn to give up momentary, uncertain and destructive pleasure for delayed, restrained, but dependable pleasure.

You wanted to kill your father in order to be your father yourself. Now you are your father, but a dead father.

We may say that hysteria is a caricature of an artistic creation, a compulsion neurosis a caricature of a religion, and a paranoiac delusion a caricature of a philosophic system.

Once again, only religion can answer the question of the purpose of life. One can hardly be wrong in concluding that the idea of life having a purpose stands and falls with the religious system.

[The child receives impressions like] a photographic exposure that can be developed after any interval of time and transformed into a picture.