Sextus Empiricus Pyrrhoniae Hypotyposes 1.33.222

[222] Now as regards those who describe him as a dogmatist, or as partly dogmatic and partly dubitative, it would be superfluous to say anything now; for they themselves acknowledge his difference from us. But the question whether Plato is a genuine Sceptic is one which we discuss more fully in our ‟Commentaries;” ¹ but now, in opposition to Menodotus ² and Aenesidemus (these being the chief champions of this view), we declare in brief that when Plato makes statements about Ideas or about the reality of Providence or about the virtuous life being preferable to the vicious, he is dogmatizing if he is assenting to these as actual truths, while if he is accepting them as more probable than not, since thereby he gives a preference to one thing over another in point of probability or improbability, he throws off the character of a Sceptic; for that such an attitude is foreign to us is quite plain from what has been said above.