The world's greatest need . . . is mutual confidence. No human being ever knows all the secrets of another's heart. Yet there is enough confidence between mother and child, husband and wife, buyer and seller . . . to make social life a practical possibility. Confidence may be risky, but it is nothing like so risky as mistrust.
Civilizations, I believe, come to birth and proceed to grow by successfully responding to successive challenges. They break down and go to pieces if and when a challenge confronts them that they fail to meet.