The knowledge of things has been often extolled in a wonderful manner by Aristotle and Theophrastus for its own sake. And Herillus, being allured by this single fact, maintained that knowledge was the chief good, and that there was no other thing whatever that deserved to be sought for its own sake. Many things have been said by the ancients on the subject of despising and contemning all human affairs. This was the one principle of Aristo; he declared that there was nothing which ought to be avoided or desired except vice and virtue. And our school has placed freedom from pain among those things which are in accordance with nature. Hieronymus has said that this is the chief good: but Callipho,and Diodorus after him, one of whom was devoted to pleasure, and the other to freedom from pain, could neither of them allow honourableness to be left out, which has been especially praised by our countrymen. Moreover, even the advocates of pleasure seek for subterfuges, and are talking of virtue whole days together; and say that pleasure is at first only wished for; that afterwards it, through custom, becomes a second nature, by which men are excited to do many things without at all seeking pleasure.
The Stoics remain to be mentioned. They, indeed, have borrowed not one idea or another from us, but have appropriated our whole system of philosophy. And as other thieves alter the marks on the things which they have stolen, so they, in order to be able to use our opinions as their own, have changed the names which are like the private marks on things. And so this school alone remains worthy of those men who study the liberal arts, worthy of the learned, worthy of eminent men, worthy of princes, worthy of kings.
And when he had said this, and then stopped to take breath for a while; What is the matter? said he; do I not seem to have said enough in your presence for my own defence? I replied,—Indeed, O Piso, as has often been the case before, you have seemed to-day to have so thorough an acquaintance with all these things, that, if we could always have the advantage of your company, I should not think that we had much reason to have recourse to the Greeks. Which, indeed, I have been the more pleased with, because I recollect that Staseas, the Neapolitan, your preceptor, a very illustrious Peripatetic, was at times accustomed to discuss these points differently, agreeing with those men who attributed a great deal of weight to prosperity and adversity, and to the good or evil qualities of the body. It is as you say, he replied: but these points are argued with much more accuracy and impressiveness by my friend Antiochus than they used to be by Staseas. Although I do not ask what I have proved to your satisfaction, but what I have proved to the satisfaction of this friend of mine, the young Cicero, a pupil whom I wish to seduce from you.