It would be one of the greatest triumphs of humanity, one of the most tangible liberations from the constraints of nature to which mankind is subject, if we could succeed in raising the responsible act of procreating children to the level of a deliberate and intentional activity and in freeing it from its entanglement with the necessary satisfaction of a natural need.

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.

A string of reproaches against other people leads one to suspect the existence of a string of self-reproaches with the same content.

Whoever loves becomes humble. Those who love have, so to speak, pawned a part of their narcissism.

The Devil would be the best way out as an excuse for God; in that way he would be playing the same part as an agent of economic discharge as the Jew does in the world of the Aryan ideal. But even so, one can hold God responsible for the existence of the Devil just as well as for the existence of the wickedness which the Devil embodies.

Psychoanalysis is in essence a cure through love.

Neurosis is the inability to tolerate ambiguity.