16:7.1
Intelligence alone cannot explain the moral nature. Morality, virtue, is indigenous to human personality. Moral intuition, the realization of duty, is a component of human mind endowment and is associated with the other inalienables of human nature: scientific curiosity and spiritual insight. Man’s mentality far transcends that of his animal cousins, but it is his moral and religious natures that especially distinguish him from the animal world.