My boy! Smoking is one of the greatest and cheapest enjoyments in life, and if you decide in advance not to smoke, i can only feel sorry for you.

I've been a fortunate man in life, nothing has come easily.

We are never so defenseless against suffering as when we love, never so forlornly unhappy as when we have lost our love object or its love.

Neither in my private life nor in my writings, have I ever made a secret of being an out-and-out unbeliever.

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.

By abolishing private property one deprives the human love of aggression.

There is scarcely room for doubt that something in the psychological relation of a mother-in-law to a son-in-law breeds hostility between them and makes it hard for them to live together. But the fact that in civilized societies mothers-in-law are such a favourite subject for jokes seems to me to suggest that the emotional relation involved includes sharply contrasted components. I believe, that is, that this relation is in fact an 'ambivalent' one, composed of conflicting affectionate and hostile impulses.