Liberty, taking the word in its concrete sense, consists in the ability to choose.

one is never got out of the cave, one comes out of it.

The difference between more or less intelligent men is like the difference between criminals condemned to life imprisonment in smaller or larger cells. The intelligent man who is proud of his intelligence is like a condemned man who is proud of his large cell.

Equality is the public recognition, effectively expressed in institutions and manners, of the principle that an equal degree of attention is due to the needs of all human beings.

Uprooting is by far the most dangerous of the ills of human society, for it perpetuates itself.

Real genius is nothing else but the supernatural virtue of humility in the domain of thought.

The notion of obligations comes before that of rights, which is subordinate and relative to the former. A right is not effectual by itself, but only in relation to the obligation to which it corresponds.