There is no respect for others without humility in one's self.

I am a spectator, so to speak, of the molecular whirlwind which men call individual life; I am conscious of an incessant metamorphosis, an irresistible movement of existence, which is going on within me - and this phenomenology of myself serves as a window opened upon the mystery of the world.

How true it is that our destinies are decided by nothings and that a small imprudence helped by some insignificant accident, as an acorn is fertilized by a drop of rain, may raise the trees on which perhaps we and others shall be crucified.

We are never more discontented with others than when we are discontented with ourselves. The consciousness of wrong-doing makes us irritable, and our heart, in its cunning, quarrels with what is outside it, in order that it may deafen the clamor within.

Every man is a priest, even involuntarily; his conduct is an unspoken sermon, which is forever preaching to others.

An error is the more dangerous in proportion to the degree of truth which it contains.

The obscure only exists that it may cease to exist. In it lies the opportunity of all victory and all progress. Whether it call itself fatality, death, night, or matter, it is the pedestal of life, of light, of liberty and the spirit. For it represents resistance -- that is to say, the fulcrum of all activity, the occasion for its development and its triumph.