Besides this description of the soul the philosophy of mind contains the ethics of Epicurus, which of all his doctrines are the most decried, and therefore the most interesting; they may, however, also be said to constitute the best part of that philosophy. The practical philosophy of Epicurus depends on the individuality of self-consciousness, just as much as does that of the Stoics; and the end of his ethics is in a measure the same, the unshaken tranquillity of the soul, and more particularly an undisturbed pure enjoyment of itself. Of course, if we regard the abstract principle involved in the ethics of Epicurus, our verdict cannot be other than exceedingly unfavourable. For if sensation, the feeling of pain and pleasure, is the criterion for the right, good, true, for that which man should make his aim in life, morality is really abrogated, or the moral principle is in fact not moral; at least we hold that the way is thereby opened up to all manner of arbitrariness in action. If it is now alleged that feeling is the ground of action, and that because I find a certain impulse in myself it is for that reason right—this is Epicurean reasoning. Everyone may have different feelings, and the same person, may feel differently at different times; in the same way with Epicurus it may be left to the subjectivity of the individual to determine the course of action. But it is of importance to notice this, that when Epicurus sets tip pleasure as the end, he concedes this only so far as its enjoyment is the result of philosophy. We have before now remarked (vol. i., p. 470) that even with the Cyrenaics, while on the one hand sensation was certainly made the principle, on the other hand it was essential that thought should be in intimate connection with it. Similarly it is the case with Epicurus that while he designated pleasure as the criterion of the good, he demanded a highly cultured consciousness, a power of reflection, which weighs pleasure to see if it is not combined with a greater degree of pain, and in this way forms a correct estimate of what it is. Diogenes Laërtius (X. 144) quotes from him with regard to this point of view: “The wise man owes but little to chance; Reason attains what is of the greatest consequence, and both directs it and will direct it his whole life long.” The particular pleasure is therefore regarded only with reference to the 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.