ducted their discussions with great gentleness. And just at that time those two books of Philo which were yesterday mentioned by Catulus had been brought to Alexandria, and had for the first time come under the notice of Antiochus; and he, though naturally a man of the mildest disposition, (nor indeed was it possible for any one to be more peaceable than he was,) was nevertheless a little provoked. I was surprised, for I had never seen him so before: but he, appealing to the recollection of Heraclitus, began to inquire of him whether he had seen those works of Philo, or whether he had heard the doctrines contained in them, either from Philo or from any one else of the Academic school? And he said that he had not; however, he recognised the style of Philo, nor, indeed, could there be any doubt about it; for some friends of mine, men of great learning, Publius and Caius Setilius, and Tetrilius Rogus were present, who said that they heard Philo advance such operations at Rome; and who said that they had written out those two books from his dictation. Then Antiochus repeated what Catulus mentioned yesterday, as having been said to Philo by his father, and many other things besides; nor did he forbear even to publish a book against his own master, which is called “Sosus.”
I therefore, then, as I was much interested in hearing Heraclitus arguing against Antiochus, and Antiochus against the Academicians, paid great attention to Antiochus, in order to learn the whole matter from him. Accordingly, for many days, collecting together Heraclitus and several learned men, and among them Aristus, the brother of Antiochus, and also Ariston and Dion, men whom he considered only second to his brother in genius, we devoted a great deal of time to that single discussion.
But we must pass over that part of it which was bestowed on refuting the doctrines of Philo; for he is a less formidable adversary, who altogether denies that the Academicians advance those arguments which were maintained yesterday. For although he is quite wrong as to the fact, still he is a less invincible adversary. Let us speak of Arcesilas and Carneades.
V. And having said this, he began again:—You appear to me, in the first place, (and he addressed me by name,) when you speak of the old natural philosophers, to do the same
