We are punished for our refusals. Every impulse that we strive to strangle broods in the mind, and poisons us. The body sins once, and has done with its sin, for action is a mode of purification. . . . Resist it, and your soul grows sick with longing for the things it has forbidden to itself, with desire for what its monstrous laws have made monstrous and unlawful. It has been said that the great events of the world take place in the brain. It is in the brain, and the brain only, that the great sins of the world take place also.