DIADUMENUS. You may hear them and read many of their writings, in which they jangle with the Academics, and cry out against them as confounding all things with their doctrine of indistinguishable identity, and as vehemently contending that there is but one quality in two substances. And yet there is no man who understands not this, and would not on the contrary think it wonderful and extremely strange if there should not in all time be found a dove exactly and in all respects like to another dove, a bee to a bee, a grain of wheat to a grain of wheat, or (as the proverb has it) one fig to another. But these things are plainly against common sense which the Stoics say and feign,—that there are in one substance two particular qualities, and that the same substance, which has particularly one quality, when another quality is added, receives and equally conserves them both. For if there may be two, there may be also three, four, and five, and even more than you can name, in one and the same substance; I say not in its different parts, but all alike in the whole, though ever infinite in number. For Chrysippus says, that Jupiter and the world are like to man, as is also Providence to the soul; when therefore the conflagration shall be, Jupiter, who alone of all the Gods is incorruptible, will retire into Providence, and they being together, will both perpetually remain in the one substance of the ether.