Philip Schaff

“ Eros is not a god, as I conceive him, but a desire occurring from the temperament of the living creature in order to the perpetuation of life, according to the foresight of Him who worketh all things, that the whole race may not fail, but by reason of pleasure another may be produced out of the substance of one who shall die, springing forth by lawful marriage, that he may know to sustain his own father in old age. And this those born from adultery cannot do, not having the nature of affection towards those who have begotten them. ”