Whatever fosters the growth of civilization works at the same time against war.

The most ancient and important taboo prohibitions are the two basic laws of totemism: not to kill the totem animal and to avoid sexual intercourse with members of the totem clan of the opposite sex.

A civilization which leaves so large a number of its participants unsatisfied and drives them into revolt neither has nor deserves the prospect of a lasting existence.

All elongated objects, such as sticks, tree-trunks and umbrellas(the opening of these last being comparable to an erection) may stand for the male organ...Boxes, cases, chests, cupboards, and ovens represent the uterus...Rooms in dreams are usually women...Many landscapes in dreams, especially any containing breidges or wooded hills, may clearly be recognized as descriptions of the genitals.

Illusions commend themselves to us because they save us pain and allow us to enjoy pleasure instead. We must therefore accept it without complaint when they sometimes collide with a bit of reality against which they are dashed to pieces.

Indeed, the great Leonardo (da Vinci) remained like a child for the whole of his life in more than one way. It is said that all great men are bound to retain some infantile part. Even as an adult he continued to play, and this was another reason why he often appeared uncanny and incomprehensible to his contemporaries.

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