Trust is the core of human relationships, of gregariousness among men. Friendship, a puzzle to the syllogistic and critical mentality, is not based on experiments or tests of another person's qualities but on trust. It is not critical knowledge but a risk of the heart which initiates affection and preserves loyalty in our fellow men.

"The Holy Dimension", p. 339. - Moral Grandeur and Spiritual Audacity: Essays (1997)