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

Thought is not a gift to man but a laborious, precarious and volatile acquisition.

Living is nothing more or less than doing one thing instead of another.

The most radical division that it is possible to make of humanity is that which splits it into two classes of creatures: Those who make great demands on themselves, piling up difficulties and duties; and those who demand nothing special of themselves, but for whom to live is to be every moment what they already are, without imposing on themselves any effort towards perfection, mere buoys that float on the waves.

The type of human being we prefer reveals the contours of our heart.

The past will not tell us what we ought to do, but... what we ought to avoid.

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