Man... is an inextricable tangle of culture and biology. And not being simple, he is not simply good; he has... a kind of hell within him from which rise everlastingly the impulses which threaten his civilization. He has the faculty of imagining for himself more in the way of pleasure and satisfaction than he can possibly achieve. Everything that he gains he pays for in more than equal coin; compromise and the compounding with defeat constitute his best way of getting through the world. His best qualities are the result of a struggle whose outcome is tragic. Yet he is a creature of love.