If we concentrate our attention on trying to solve a problem of geometry, and if at the end of an hour we are no nearer to doing so than at the beginning, we have nevertheless been making progress each minute of that hour in another more mysterious dimension. Without knowing or feeling it, this apparent barren affort has brought more light into the soul.

Charity. To love human beings in so far as they are nothing. That is to love them as God does.

One does not play Bach without having done scales. But neither does one play a scale merely for the sake of the scale.

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 only hope of socialism resides in those who have already brought about in themselves, as far as is possible in the society of today, that union between manual and intellectual labor which characterizes the society we are aiming at.

Love is not consolation, it is light.

When once a certain class of people has been placed by the temporal and spiritual authorities outside the ranks of those whose life has value, then nothing comes more naturally to men than murder.