All intelligent faith in God has behind it a background of humble agnosticism.

No one can get inner peace by pouncing on it, by vigorously willing to have it ... Peace is a consciousness of springs too deep for earthly droughts to dry up. Peace is the gift not of volitional struggle but of spiritual hospitality.

It is magnificent to grow old, if one keeps young.

No man need stay the way he is.

Prayer opens our lives for God so his will can be done in and through us, because in true prayer we habitually put ourselves into the attitude of willingness to do whatever God wills.

Every human life involves an unfathomable mystery, for man is the riddle of the universe, and the riddle of man in his endowment with personal capacities.

He who cannot rest, cannot work; he who cannot let go, cannot hold on; he who cannot find footing, cannot go forward.