The joy of learning is as indispensable in study as breathing is in running.

Christ himself came down and took possession of me. . . I had never foreseen the possibility of that, of a real contact, person to person, here below, between a human being and God. . . in this sudden possession of me by Christ, neither my sense nor my imagination had any part: I only felt in the midst of my suffering the presence of a love.

Distance is the soul of beauty.

Modern war appears as a struggle led by all the State apparatuses and their general staffs against all men old enough to bear arms.

Contradiction is the lever of transcendence.

The children of God should not have any other country here below but the universe itself, with the totality of all the reasoning creatures it ever has contained, contains, or ever will contain. That is the native city to which we owe our love.

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.