But this genius is not within the reach of everybody. It supposes, with long experience of life, a sure insight, capable of discerning all the consequences of actions, a head strong and large enough to embrace and weigh their different chances. The young man, the ignorant, the poor in mind, are not able to distinguish between the good and the evil, the honest and the dishonest. And even in supposing the most consummate prudence, what place remains, in the profound obscurity of human things, for chance and the unforeseen! In truth, in the system of interest well understood, there must be great knowledge in order to be an honest man. Much less is requisite for ordinary virtue, whose motto has always been: Do what you ought, let come what may.[194] But this principle is precisely the opposite of the principle of interest. It is necessary to choose between them. If interest is the only principle avowed by reason, disinterestedness is a lie and madness, and literally an incomprehensible monster in well-ordered human nature. Nevertheless humanity speaks of disinterestedness, and thereby it does not simply mean that wise selfishness that deprives itself of a pleasure for a surer, more delicate, or more durable pleasure. No one has ever believed that it was the nature or the degree of the pleasure sought that constituted disinterestedness. This name is awarded only to the sacrifice of an interest, whatever it may be, to a motive free from all interest. And the human race, not only thus understands disinterestedness, but it believes that such a disinterestedness exists; it believes the human soul capable of it. It admires the devotedness of Regulus, because it does not see what interest could have impelled that great man to go far from his country to seek, among cruel enemies, a frightful death, when he might have lived tranquil and even honored in the midst of his family and his fellow-citizens. But glory, it will be said, the passion of glory inspired Regulus; it is, then, interest still that explains the apparent heroism of the old Roman. Admit, then, that this manner of understanding his interest is even ridiculously absurd, and that heroes are very unskilful and inconsistent egoists. Instead of erecting statues, with the deceived human race, to Regulus, d'Assas, and St. Vincent de Paul, true philosophy must send them to the Petites-Maisons, that a good regime may cure them of generosity, charity, and greatness of soul, and restore them to the sane state, the normal state, the state in which man only thinks of himself, and knows no other law, no other principle of action than his interest. 3d. If there is no liberty, if there is no essential distinction between good and evil, if there is only interest well or ill understood, there can be no obligation.