Anesthesia: wounds without pain. Neurasthenia: pain without wounds.

To me it's still a greater miracle when a fly flies than when a human being undertakes to do so.

If children had been told that they could not blow their noses, this alone would make adults blush.

Nationalism is the love which ties me to the blockheads of my country, to the insultors of my way of life, and to the desecrators of my language.

Sexuality poorly repressed unsettles some families; well repressed, it unsettles the whole world.

I have decided many a stylistic problem first by my head, then by heads or tails.

The ultimate aim of psychoanalysis is to attribute art to mental weakness, and then to trace the weakness back to the point where, according to analytic dogma, it originated namely, the lavatory.