The hypothesis of Materialism has but a single merit; it is more consistent than those of the other systems. But even to this merit Materialism loses its title whenever it shrinks from pushing its principles boldly to their consequences, whether philosophical or practical: that is to say, whenever it shrinks from denying man's liberty, a moral law, the necessary principles of the human mind--whenever, in short, it shrinks from proclaiming its ultimate results, which are, as M. Damiron puts them, Fatalism, Egotism, Atheism. Philosophers are right in seeking for truth and in respecting truth for itself and at every risk; but there are some consequences which are the clearest evidence of a vice in principle; and this vice, in Materialism, is the blind forgetfulness of the best proved facts and the most essential elements of human nature. --------------------------------------- {350} Seventh Meditation. Skepticism. There are two kinds of Skepticism, experimental Skepticism and systematic Skepticism. Experimental Skepticism is the result of the incertitude which arises in men's minds from the spectacle of the infinite variety, discordance, and mobility of human opinions. Systematic Skepticism, on the other hand, challenges the power itself of the human understanding, and declares it incapable of knowing things in their essence--reality in itself. The one is doubt applied in practice; the other is doubt affirmed as a principle. {351} In an essay on Skepticism, written in 1830, M. Jouffroy treated experimental and practical skepticism with great contempt: this skepticism "founds itself," says he, "only upon the apparent contradictions of human judgment. To prove that there is a contradiction either between the results at which each faculty of the mind when taken separately arrives, or between the final results attained by different faculties, as by the sense and by the reason; to establish that there is a contradiction of a like nature between the opinions received by different men or by different nations, or between those opinions themselves, which, at different epochs, have variously for a time contented humanity; then to conclude from all this that the human intelligence regards in turn as true things which are contradictory, and that consequently there is for that intelligence no truth at all: such is all the mechanism in which this second-rate skepticism consists which has fascinated, and still continues to fascinate, whole hosts of little minds. Long ago this skepticism was refuted, and at all its points; long ago the unity of human truth was demonstrated, after having been admitted _à priori_ in all ages by their leading minds. {352} This kind of skepticism is a theme upon which men will long continue to dilate; the darling subject for wits, it merits not to arrest the attention of philosophers."