Man adapts himself to everything, to the best and the worst.

The man who discovers a new scientific truth has previously had to smash to atoms almost everything he had learnt, and arrives at the new truth with hands blood stained from the slaughter of a thousand platitudes.

Today violence is the rhetoric of the period.

Man has to live with the body and soul which have fallen to him by chance.

Better beware of notions like genius and inspiration; they are a sort of magic wand and should be used sparingly by anybody who wants to see things clearly.

Abasement, degradation is simply the manner of life of the man who has refused to be what it is his duty to be.

The form most contradictory to human life that can appear among the human species is the "self-satisfied man."