Sympathy constitutes friendship; but in love there is a sort of antipathy, or opposing passion. Each strives to be the other, and both together make up one whole.
When he shall die, Take him and cut him out in little stars, And he will make the face of heaven so fine That all the world will be in love with night And pay no worship to the garish sun.
A man's ethical behaviour should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.