Love is a state of temporary psychosis.

The transformation of object-libido into narcissistic libido which thus takes place obviously implies an abandonment of sexual aims, a desexualization - a kind of sublimation, therefore.

The world is no nursery.

Only a good-for-nothing is not interested in his past.

I regard myself as one of the most dangerous enemies of religion

Men are not gentle, friendly creatures wishing for love, who simply defend themselves if they are attacked, but ... a powerful measure of desire for aggression had to be reckoned as part of their instinctual endowment.

Tobacco is the only excuse for Columbus's misadventure in discovering America.