He who opens a school door, closes a prison.

Being good is easy, what is difficult is being just.

He had, they said, tasted in succession all the apples of the tree of knowledge, and, whether from hunger or disgust, had ended by tasting the forbidden fruit.

Nothing is so stifling as symmetry. Symmetry is boredom, the quintessence of mourning. Despair yawns. There is something more terrible than a hell of suffering - a hell of boredom.

To love another person is to see the face of God.

...Though we chisel away as best we can at the mysterious block from which our life is made, the black vein of destiny continually reappears.

No doubt it was necessary to civilize man in relation to man. That work is already advanced and is making progress every day. But man must be civilized also in relation to nature.