_Moral Insanity._--Complete absence of moral sense and of sympathy is frequently found among men of genius, as well as among the morally insane. It is an old proverb that “_Quo quisque est doctior eo est nequior_.” Aristotle, in reply to the question, “Why the most learned man is of all living beings the most unjust?” replies: “Because he aims always at pleasures which can only be attained by injustice. And, besides, knowledge resembles the stone which is good to sharpen instruments on, but may also serve the murderer’s turn.” And Philip of Comines says: “_Doctrina vel meliores reddit homines vel pejores pro cujusque natura_.” And Cardan: “_Sapientes cum calidissimi natura sint, ac humidissimi, nisi philosophia proficiant, pessimi omnium sunt. Adiuvant ad scelera perpetranda industria quam ex studiis acquisuerunt, et melancolia quæ resoluto humore pinguiore gignitur ex superfluis studiis, atque, vigiliis_,” _&c._ “The older I grow,” wrote George Sand, “the more I reverence goodness because I see that this is the gift of which God is most avaricious. Where there is no intelligence, that which is called goodness is merely stupidity. Where there is no strength the pretended goodness is apathy. Where there is strength and intelligence, goodness can scarcely be found, because experience and observation have given birth to suspicion and hate. The souls devoted to the noblest principles are often the most rough and bitter, because they have become diseased through deceptions. One esteems them, one admires them still, but one cannot love them. To have been unhappy without ceasing to be intelligent and good implies a very powerful organization, and it is such that I seek and love.... I am sick of great men (forgive the expression); I should like to see them all in Plutarch. There they do not make one suffer on the human side. Let them be cut in marble or cast in bronze, and let them be silent. So long as they live they are wicked, persecuting, fantastic, despotic, bitter, suspicious. They confuse in the same proud contempt the goats and the sheep. They are worse to their friends than to their enemies. God protect us from them; be good--stupid if you will.”[130]