And as for the second part of philosophy, which belongs to investigating and discussing, and which is called λογικὴ, there your master as it seems to me is wholly unarmed and defenceless. He abolishes definitions; he lays down no rules for division and partition; he gives no method for drawing conclusions or establishing principles; he does not point out how captious objections may be refuted, or ambiguous terms explained. He places all our judgments of things in our senses; and if they are once led to approve of anything false as if it were true, then he thinks that there is an end to all our power of distinguishing between truth and falsehood.
But in the third part, which relates to life and manners, with respect to establishing the end of our actions, he utters not one single generous or noble sentiment. He lays down above all others the principle, that nature has but two things as objects of adoption and aversion, namely, pleasure and pain:and he refers all our pursuits, and all our desires to avoid anything, to one of these two heads. And although this is the doctrine of Aristippus, and is maintained in a better manner and with more freedom by the Cyrenaics, still I think it a principle of such a kind that nothing can appear more unworthy of a man. For, in my opinion, nature has produced and formed us for greater and higher purposes. It is possible, indeed, that I may be mistaken; but my opinion is decided that that Torquatus, who first acquired that name, did not tear the chain from off his enemy for the purpose of procuring any corporeal pleasure to himself; and that he did not, in his third consulship, fight with the Latins at the foot of Mount Vesuvius for the sake of any personal pleasure. And when he caused his son to be executed, he appears to have even deprived himself of many pleasures, by thus preferring the claims of his dignity and command to nature herself and the dictates of fatherly affection. What need I say more? Take Titus Torquatus, him I mean who was consul with Cnæus Octavius; when he behaved with such severity towards that son whom he had allowed Decimus Silanus to adopt as his own, as to command him, when the ambassadors of the Macedonians accused him of having taken bribes in his province while he was prætor, to plead his cause before his tribunal: and, when he had heard the cause on both sides, to pronounce that he had not in his command behaved after the fashion of his forefathers, and to forbid him ever to appear in his sight again; does he seem to you to have given a thought to his own pleasure?
However, to say nothing of the dangers, and labours, and even of the pain which every virtuous man willingly encounters on behalf of his country, or of his family, to such a degree that he not only does not seek for, but even disregards all pleasures, and prefers even to endure any pain whatever rather than to forsake any part of his duty; let us come to those things which show this equally, but which appear of less importance. What pleasure do you, O Torquatus, what pleasure does this Triarius derive from literature, and history, and the knowledge of events, and the reading of poets, and his wonderful recollection of such numbers of verses? And do not say to me, Why all these things are a pleasure to me. So, too, were those noble actions to the Torquati. Epicurus never asserts this in this manner; nor would you, O Triarius, nor any man who had any wisdom, or who had ever imbibed those principles. And as to the question which is often asked, why there are so many Epicureans—there are several reasons; but this is the one which is most seductive to the multitude, namely, that people imagine that what he asserts is that those things which are right and honourable do of themselves produce joy, that is, pleasure. Those excellent men do not perceive that the whole system is overturned if that is the case. For if it were once granted, even although there were no reference whatever to the body, that these things were naturally and intrinsically pleasant; then virtue and knowledge would be intrinsically desirable. And this is the last thing which he would choose to admit.
These principles, then, of Epicurus, I say, I do not approve of. As for other matters, I wish either that he himself had been a greater master of learning, (for he is, as you yourself cannot help seeing, not sufficiently accomplished in those branches of knowledge which men possess who are accounted learned,) or at all events that he had not deterred others from the study of literature: although I see that you yourself have not been at all deterred from such pursuits by him.