The supernatural virtue of justice consists of behaving exactly as though there were equality when one is the stronger in an unequal relationship.

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.

Human existence is so fragile a thing and exposed to such dangers that I cannot love without trembling.

An atheist may be simply one whose faith and love are concentrated on the impersonal aspects of God.

Nothing can have as its destination anything other than its origin. The contrary idea, the idea of progress, is poison.

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.

One can never really give a proof of the reality of anything; reality is not something open to proof, it is something established. It is established just because proof is not enough. It is this characteristic of language, at once indispensable and inadequate, which shows the reality of the external world. Most people hardly ever realize this, because it is rare that the very same man thinks and puts his thought into action.