No being will do his most luminous and exalted thinking with his stomach a morgue. - J. Howard Moore

Act toward others as you would act toward a part of your own self.

Take the donkey. The donkey brays. But wouldn't it have been more satisfactory to all those who have ears to hear and sensoriums to look after if the donkey had been provided with a laryngeal apparatus that would enable it to express the overflow of its yearnings in song? Would it have been better or would it have been worse if the liver-fluke had been left out of the world—that parasitic flat-worm residing in the bile-sac of the sheep, and causing sometimes as many as 3,000,000 sheep to perish miserably in a year in Great Britain alone? Couldn't we get along without tapeworms, and rattlesnakes, and fleas, and the appetite for alcohol? How about weeds, and diseases, and slush, and microbes, and famines, and fogs, and floods, and hurricanes, and earthquakes, and mosquitoes, and dust, and fools, and near-fools, and death?

Egoism is preference for self, partiality toward that part of the universe bounded by one's own skin. It may consist simply of regard for self, but with regard for self is usually associated enmity toward others. Egoism manifests itself in such qualities of mind as selfishness, cruelty, intolerance, hate, hardheartedness, savagery, rudeness, injustice, narrowness, and the like. It is the primal impulse of the living heart. Enmity is older and more universal than love. Enmity constituted the very loins from which long ago came the original miscreants of this world.