Everything has been evolved—_everything_—from daffodils to states and from ticks to religion. Every organic thing is the result of long and incessant survival of the advantageous—advantageous from the standpoint of the organism itself or from the standpoint of its kind, not necessarily so from the standpoint of the universe. That which is true of everything is true also of egoism and altruism. Egoism and altruism exist as facts in the natures of human and other beings for the same reason that the various physical facts exist in the structures of human and other beings, because they have been advantageous in the struggle for life. There is just as definite an explanation for the existence of egoism and altruism in this world, and for their existence in the particular form and ratio in which they do exist, as there is for the fact that the human hand has five fingers, the rose odour, and the eggs of the kildeer the mottled markings of the clods among which they lie. 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. ‘I saw the fishes playing there; I saw all that was in the whole world round; In wood, and bower, and marsh, and mead, and field, All things which creep and fly, And put a foot to earth. All these I saw, and say to you, That nothing lives among them without hate.’ Life has been developed through selection. This selection has been brought about largely through war—war between individuals and between groups of individuals. War and competition are struggle between living beings, and the soul of competition is selfishness. Egoism is the primal and most powerful of terrestrial impulses, because beings hated and exterminated each other before they tolerated and loved, and because struggle has far overshadowed cooperation as a factor in life evolution.