whole, and sensuous perception is not the one and only principle of the Epicureans; but while they made pleasure the principle, they made a principle at the same time of that happiness which is attained, and only attainable by reason; so that this happiness is to be sought in such a way that it may be free and independent of external contingencies, the contingencies of sensation. The true Epicureans were therefore, just as much as the Stoics, raised above all particular ties, for Epicurus, too, made his aim the undisturbed tranquillity of the wise man. In order to be free from superstition Epicurus specially requires physical science, as it sets men free from all the opinions which most disturb their rest—opinions regarding the gods, and their punishments, and more particularly from the thought of death.[162] Freed from all this fear, and from the imaginings of the men who make any particular object their end and aim, the wise man seeks pleasure only as something universal, and holds this alone to be positive. Here the universal and the particular meet; or the particular, regarded only in its bearings to the whole, is raised into the form of universality. Thus it happens that, while materially, or as to content, Epicurus makes individuality a principle, on the other hand he requires the universality of thinking, and his philosophy is thus in accordance with that of the Stoics. Seneca, who is known as a thorough-going and uncompromising Stoic, when in his treatise _De Vita Beata_ (c. 12, 13) he happens to speak of the Epicureans, gives testimony which is above suspicion to the ethical system of Epicurus: “My verdict is, however—and in thus speaking I go, to some extent, against many of my own countrymen—that the moral precepts of Epicurus prescribe a way of life that is holy and just, and, when closely considered, even sorrowful. For every pleasure of Epicurus turns on something very paltry and poor, and we scarcely know how restricted it is, and how insipid. The self-same law which we lay down for virtue he prescribes for pleasure; he requires that Nature be obeyed; but very little in the way of luxury is required to satisfy Nature. What have we then here? He who calls a lazy, self-indulgent, and dissolute life happiness merely seeks a good authority for a thing that is evil, and while, drawn on by a dazzling name, he turns in the direction where he hears the praise of pleasure sounding, he does not follow the pleasures to which he is invited by Epicurus, but those which he himself brings with him. Men who thus abandon themselves to crime seek only to hide their wickedness under the mantle of philosophy, and to furnish for their excesses a pretext and an excuse. Thus it is by no means permitted that youth should hold up its head again for the reason that to the laxity of its morality an honourable title has been affixed.” By the employment of our reflective powers, which keep guard over pleasure and consider whether there can be any