George William Russell

By intensity of hatred, nations create in themselves the character that they imagine in their enemies. Hence it comes that all passionate conflicts result in an interchange of characteristics. We might say with truth, those who hate open a door by which their enemies enter and make their own the secret places of the heart.

To those who ask what the infinitely small quantity in mathematics is, we answer that it is actually zero. Hence there are not so many mysteries hidden in this concept as they are usually believed to be.