The decisive question for man is: Is he related to something infinite or not? That is the telling question of his life. Only if we know that the thing which truly matters is the infinite can we avoid fixing our interests upon futilities, and upon all kinds of goals which are not of real importance.... If we understand and feel that here in this life we already have a link with the infinite, desires and attitudes change.

Memories, dreams, reflections (ed. Random House Inc, 1973)