One should identify oneself with the universe itself. Everything that is less than the universe is subjected to suffering.

A doctrine serves no purpose in itself, but it is indispensable to have one if only to avoid being deceived by false doctrines.

All the natural movements of the soul are controlled by laws analogous to those of physical gravity. Grace is the only exception. Grace fills empty spaces, but it can only enter where there is a void to receive it, and it is grace itself which makes this void. The imagination is continually at work filling up all the fissures through which grace might pass.

Mathematics alone make us feel the limits of our intelligence. For we can always suppose in the case of an experiment that it is inexplicable because we don't happen to have all the data. In mathematics we have all the data, brought together in the full light of demonstration, and yet we don't understand. We always come back to the contemplation of our human wretchedness. What force is in relation to our will, the impenetrable opacity of mathematics is in relation to our intelligence.

Expectant waiting is the foundation of the spiritual life.

It seemed to me certain, and I still think so today, that one can never wrestle enough with God if one does so out of pure regard for the truth. Christ likes us to prefer truth to him because, before being Christ, he is truth. If one turns aside from him to go toward the truth, one will not go far before falling into his arms.

In struggling against anguish one never produces serenity; the struggle against anguish only produces new forms of anguish.