The world is no nursery.

History is just new people making old mistakes.

Woe to you, my Princess, when I come. I will kiss you quite red and feed you till you are plump. And if you are froward, you shall see who is the stronger, a gentle little girl who doesn't eat enough, or a big wild man who has cocaine in his body. -- A love letter from Freud to his fiancée.

The true believer is in a high degree protected against the danger of certain neurotic afflictions; by accepting the universal neurosis he is spared the task of forming a personal neurosis.

Only the real, rare, true scientific minds can endure doubt, which is attached to all our knowledge.

None believes in his own death. In the unconscious everyone is convinced of his own immortality.

America is a mistake, a giant mistake.