The highest knowledge is to know that we are surrounded by mystery. Neither knowledge nor hope for the future can be the pivot of our life or determine its direction. It is intended to be solely determined by our allowing ourselves to be gripped by the ethical God, who reveals Himself in us, and by our yielding our will to His.

Affirmation of the world, which means affirmation of the will-to-live that manifests itself around me, is only possible if I devote myself to other life.

Only an ethical movement can rescue us from barbarism, and the ethical comes into existence only in individuals.

Not one of us knows what effect his life produces, and what he gives to others; that is hidden from us and must remain so, though we are often allowed to see some little fraction of it, so that we may not lose courage.

Truth has not special time of its own. Its hour is now - always and, indeed then most truly, when it seems unsuitable to actual circumstances.

It is the fate of every truth to be an object of ridicule when it is first acclaimed.

Ethics is the activity of man directed to secure the inner perfection of his own personality.