The Mosaic religion had been a Father religion; Christianity became a Son religion. The old God, the Father, took second place; Christ, the Son, stood in His stead, just as in those dark times every son had longed to do.

When the wayfarer whistles in the dark, he may be disavowing his timidity, but he does not see any the more clearly for doing so.

In the depths of my heart I can’t help being convinced that my dear fellow-men, with a few exceptions, are worthless.

I should like to raise the question whether the inevitable stunting of the sense of smell as a result of man's turning away from the earth, and the organic repression of the smell-pleasure produced by it, does not largely share in his predisposition to nervous diseases.

Our possibilities of happiness are already restricted by our constitution. Unhappiness is much less difficult to experience. We are threatened with suffering from three directions: from our own body, which is doomed to decay and dissolution and which cannot even do without pain and anxiety as warning signals; from the external world, which may rage against us with overwhelming and merciless forces of destruction; and finally from our relations to other men. The suffering which comes from this last source is perhaps more painful to us than any other.

The news that reaches your consciousness is incomplete and often not to be relied on.... Turn your eyes inward, look into your own depths, learn first to know yourself!

Words have a magical power. They can either bring the greatest happiness or the deepest despair.