Where does a thought go when it's forgotten?

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

Civilized people have exchanged some part of their chances of happiness for a measure of security.

No, our science is no illusion. But an illusion it would be to suppose that what science cannot give us we can get elsewhere.

I do not doubt that it would be easier for fate to take away your suffering than it would for me. But you will see for yourself that much has been gained if we succeed in turning your hysterical misery into common unhappiness.

Civilization is a process in the service of Eros, whose purpose is to combine single human individuals, and after that families, then races, peoples and nations, into one great unity, the unity of mankind. Why this has to happen, we do not know; the work of Eros is precisely this.

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.