Driving forward is the chief characteristic of western man since the Sumerians. His dread triad of vices is property-holding, voraciousness, and lust.

The abolition of the class struggle does not mean the abolition of the need to struggle as a principle of development.

I'm a pessimist because of intelligence, but an optimist because of will.

The old is dying and the new cannot be born. In this interregnum there arises a great diversity of morbid symptoms.

All men are intellectuals, but not all men have in society the function of intellectuals.

After puberty the personality develops impetuously and all extraneous intervention becomes odious.... Now it so happens that parents feel the responsibility towards their children precisely during this second period, when it is too late.

The challenge of modernity is to live without illusions and without becoming disillusioned.