Science is a cemetery of dead ideas.

To love with the spirit is to pity, and he who pities most loves most.

True science teaches, above all, to doubt and to be ignorant.

We need God, not in order to understand the why, but in order to feel and sustain the ultimate wherefore, to give a meaning to the universe.

We never know, believe me, when we have succeeded best.

What we believe to be the motives of our conduct are usually but the pretexts for it.

It is sad not to love, but it is much sadder not to be able to love.

Love is the child of illusion and the parent of disillusion.

A lot of good arguments are spoiled by some fool who knows what he is talking about.

A man does not die of love or his liver or even of old age; he dies of being a man.

Your neighbor's vision is as true for him as your own vision is true for you.

Cure yourself of the affliction of caring how you appear to others. Concern yourself only with how you appear before God, concern yourself only with the idea that God may have of you.

There is no true love save in suffering, and in this world we have to choose either love, which is suffering, or happiness. Man is the more man - that is, the more divine - the greater his capacity for suffering, or rather, for anguish.

Some people will believe anything if you whisper it to them.

If a person never contradicts himself, it must be that he says nothing.

Only in solitude do we find ourselves; and in finding ourselves, we find in ourselves all our brothers in solitude.

It is truer to say that martyrs create faith more than faith creates martyrs.

The only way to give finality to the world is to give it consciousness.

The skeptic does not mean him who doubts, but him who investigates or researches, as opposed to him who asserts and thinks that he has found.

Faith which does not doubt is dead faith.