An attempt has recently been made by M. Guyau to trace the influence of Epicurus on modern philosophy. We cannot but think the method of this able and lucid writer a thoroughly mistaken one. Assuming the recognition of self-interest as the sole or paramount instinct in human nature, to be the essence of what Epicurus taught, M. Guyau, without more ado, sets down every modern thinker who agrees with him on this one point as his disciple, and then adds to the number all who hold that pleasure is the end of action; thus making out a pretty long list of famous names among the more recent continuators of his tradition. A more extended study of ancient philosophy would have shown the French critic that moralists who, in other respects, were most opposed to Epicurus, agreed with him in holding that every man naturally and necessarily makes his own interest the supreme test of right conduct; and that only with the definition of welfare did their divergence begin. On the other hand, the selfish systems of modern times differ entirely from Epicureanism in their conception of happiness. With Hobbes, for instance, whom M. Guyau classes as an Epicurean, the ideal is not painlessness but power; the desires are, according to his view, naturally infinite, and are held in check, not by philosophical precepts but by mutual restraint; while, in deducing the special virtues, his standard is not the good of each individual, but the good of the whole—in other words, he is, to that extent, a Stoic rather than an Epicurean. La Rochefoucauld, who is offered as another example of the same tendency, was not a moralist at all; and as a psychologist he differs essentially from Epicurus in regarding vanity as always and everywhere the great motive to virtue. Had the Athenian sage believed this he would have despaired of making men happy; for disregard of public opinion, within the limits of personal safety, was, with him, one of the first conditions of a tranquil existence. Nor would he have been less averse from the system of Helvétius, another of his supposed disciples. The principal originality of Helvétius was to insist that the passions, instead of being discouraged—as all previous moralists, Epicurus among the number, had advised—should be deliberately stimulated by the promise of unlimited indulgence to those who distinguished themselves by important public services. Of Spinoza we need say nothing, for M. Guyau admits that he was quite as much inspired by Stoic as by Epicurean ideas. At the same time, the combination of these two ethical systems would have been much better illustrated by modern English utilitarianism, which M. Guyau regards as a development of Epicureanism alone. The greatest happiness of the greatest number is not an individual or self-interested, but a universal end, having, as Mill has shown, for its ultimate sanction the love of humanity as a whole, which is an essentially Stoic sentiment.