our senses? Even the Cimmerians, to whom some god, or nature, or the foulness of the country that they inhabited, had denied the light of the sun, had still some fires which they were permitted to avail themselves of as if they were light. But those men whom you approve of, after having enveloped us in such darkness, have not left us a single spark to enable us to look around by. And if we follow them, we become bound with such chains that we cannot move. For when assent is taken away, they take away at the same time all motion of our minds, and all our power of action; which not only cannot be done rightly, but which cannot possibly be done at all. Beware, also, lest you become the only person who is not allowed to uphold that opinion. Will you, when you have explained the most secret matters and brought them to light, and said on your oath that you have discovered them, (which, indeed, I could swear to also, since I learnt them from you,)—will you, I say, assert that there is nothing which can be known, comprehended, or perceived? Beware, I entreat you, lest the authority of those most beautiful actions be diminished by your own conduct.
And having said this he stopped. But Hortensius, admiring all he said very greatly, (so much, indeed, that all the time that Lucullus was speaking he kept lifting up his hands; and it was no wonder, for I do not believe that an argument had ever been conducted against the Academy with more acuteness,) began to exhort me, either jestingly or seriously, (for that was a point that I was not quite sure about,) to abandon my opinions. Then, said Catulus, if the discourse of Lucullus has had such influence over you,—and it has been a wonderful exhibition of memory, accuracy, and ingenuity,—I have nothing to say; nor do I think it my duty to try and deter you from changing opinion if you choose. But I should not think it well for you to be influenced merely by his authority. For he was all but warning you, said he, jestingly, to take care that no worthless tribune of the people, of whom you know what a number there will always be, seize upon you, and ask of you in the public assembly how you are consistent with yourself, when at one time you assert that nothing certain can be discovered, and at another time affirm that you yourself have discovered something. I entreat you, do not let him terrify you. But I would rather have you disagree
