XLII. On the subject of good and evil, these were his sentiments: that the end was to become like God; and that virtue was sufficient of herself for happiness, but nevertheless required the advantages of the body as instruments to work with; such as health, strength, the integrity of the senses, and things of that kind; and also external advantages, such as riches, and noble birth, and glory. Still that the wise man would be not the less happy, even if destitute of these auxiliary circumstances; for he would enjoy the constitution of his country, and would marry, and would not transgress the established laws, and that he would legislate for his country, as well as he could under existing circumstances, unless he saw affairs in an unmanageable condition, in consequence of the excessive factiousness of the people. He thinks too that the Gods superintend all the affairs of men, and that there are such beings as dæmons. And he was the first person who defined the notion of the honourable, as that which borders on the praiseworthy, and the logical, and the useful, and the becoming, and the expedient, all which things are combined with that which is suitable to, and in accordance with, nature.
XLIII. He also discussed in his dialogues the correctness of terms, so that he was the first person who reduced the science of giving correct answers, and putting correct questions to a system, which he himself used to satiety.
XLIV. In his dialogues he used to speak of justice as a kind of law of God, as being of influence sufficient to excite men to act justly, in order to avoid suffering punishment as malefactors after death. Owing to which he appeared to some people rather fond of mythical stories, as he mingled stories of this kind with his writings, in order by the uncertainty of all the circumstances that affect men after their death, to induce them to abstain from evil actions. And these were his opinions.