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.

The effect of the consolations of religion may be compared to that of a narcotic.

In the development of mankind as a whole, just as in individuals, love alone acts as the civilizing factor in the sense that it brings a change from egoism to altruism.

The dream is the liberation of the spirit from the pressure of external nature, a detachment of the soul from the fetters of matter.

In the small matters trust the mind, in the large ones the heart.

What is a totem? It is as a rule an animal (whether edible and harmless or dangerous and feared) and more rarely a plant or a natural phenomenon (such as rain or water), which stands in a peculiar relation to the whole clan. In the first place, the totem is the common ancestor of the clan; at the same time it is their guardian spirit and helper, which sends them oracles and, if dangerous to others, recognizes and spares its own children.

The unconscious of one human being can react upon that of another without passing through the conscious.