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

The only unnatural sexual behavior is none at all.

It might be said of psychoanalysis that if you give it your little finger it will soon have your whole hand.

We are so made that we can derive intense enjoyment only from a contrast.

It is always possible to bind together a considerable number of people in love, so long as there are other people left over to receive the manifestations of their aggressiveness.

The unconscious - that is to say, the 'repressed' - offers no resistance whatever to the efforts of the treatment. Indeed, it itself has no other endeavour than to break through the pressure weighing down on it and force its way either to consciousness or to a discharge through some real action.

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