Doubt of the reality of love ends by making us doubt everything.

To be always ready a man must be able to cut a knot, for everything cannot be untied.

Nothing is more characteristic of a man than the manner in which he behaves toward fools.

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.

Tell me what you feel in your room when the full moon is shining in upon you and your lamp is dying out, and I will tell you how old you are, and I shall know if you are happy.

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

Our dependence outweighs our independence, for we are independent only in our desire, while we are dependent on our health, on nature, on society, on everything in us and outside us.