To want friendship is a great fault. Friendship ought to be a gratuitous joy, like the joys afforded by art or life.

The right to kill: supposing the life of X ... were linked with our own so that the two deaths had to be simultaneous, should we still wish him to die? If with our whole body and soul we desire life and if nevertheless without lying, we can reply 'yes'> then we have the right to kill.

There is no greater joy for me than looking at the sky on a clear night with an attention so concentrated that all my other thoughts disappear; then one can think that the stars enter into one's soul.

If you want to know what a man is really like, take notice of how he acts when he loses money.

It is not through the way in which someone speaks about God that I can see whether that person has passed through the crucible of Divine Love, but through the way the person speaks to me about things here on earth.

Time does us violence; it is the only violence.

Purity is the power to contemplate defilement.