No one can give a definition of the soul. But we know what it feels like. The soul is the sense of something higher than ourselves, something that stirs in us thoughts, hopes, and aspirations which go out to the world of goodness, truth and beauty. The soul is a burning desire to breathe in this world of light and never to lose it--to remain children of light.

Thought is the strongest thing we have.

We are all so much together, but we are all dying of loneliness.

One truth stands firm. All that happens in world history rests on something spiritual. If the spiritual is strong, it creates world history. If it is weak, it suffers world history.

The the question whether I am a pessimist or an optimist, I answer that my knowledge is pessimistic, but my willing and hope are optimistic.

Any profound view of the world is mysticism. It has, of course, to deal with life and the world, both of which are nonrational entities.

Man has become a superman ... because he not only disposes oinnate, physical forces, but because he is in command ... olatent forces in nature and because he can put them to his service.... But the essential fact we must surely all feel in our hearts ... is that we are becoming inhuman in proportion as we become supermen.