"As L'Esprit," he said, "La Rochefoucauld, and that sort of people, prove that all virtues are disguised vices, I would engage to prove all vices to be disguised virtues. Neither, indeed, is true: but this would be a more agreeable subject; and would overturn their whole scheme."[852] He repeated the criticism in a suppressed passage of the Essay on Man,[853] with a complete unconsciousness that the "scheme" he fancied he could "overturn," was the very soul of his system. "Heaven," he said, "can raise virtue's ends from the vanity which seeks no reward but praise,"[854] and for man to be virtuous solely out of vanity was exactly the virtue which La Rochefoucauld called "vice in disguise." He who feeds the hungry from vanity alone is not moved by sympathy for suffering. Charity is merely the pretence which his vanity pleads. Each of the other ruling passions acts according to its own exclusive nature, and the virtue which is adopted to humour anger, hate, sloth, and avarice, is by general consent called delusion or imposture. La Rochefoucauld has the advantage over Pope. The succession of selfish passions he discovered too uniformly in man is less odious than the concentrated anger, hate, or sloth which never pauses or turns aside; and the satirist who lashes the deceptive vices of mankind is to be preferred to the moralist who teaches that vice in disguise is virtue. The contradictions are not at an end. Pride, folly, "even mean self-love," have all, says Pope, some good in them.[855] He forgot that self-love is, with him, the principle of every virtue and vice, their essence and life, their origin and end, and to call self-love meaner than pride and folly is either to assert that self-love is meaner than itself, or to abandon the foundation of his moral systems. He goes on to ascribe an influence to self-love which is incompatible with his second system, or theory of the ruling passion. "Self-love," he says, "is the scale to measure others' wants by thine," or, as he remarked to Spence, "self-love would be a necessary principle in every one, if it were only to serve each as a scale for his love to his neighbour."[856] On Pope's second system this love of each for his neighbour must be extinct, unless love chanced to be the ruling passion. Unmixed anger, hate, and sloth retain no trace of affection. When we are reduced to a single passion, and for selfish purposes "measure others' wants by our own," anger can but have an intellectual, unsympathising perception of rival passions, and will only assist them in the degree which will serve its irritable instincts. Sloth, anger, hate, and the rest will act according to their kind, and to call upon them to love their neighbours as themselves is to enjoin the deaf to hear, and the blind to see.