...hat we will consider hereafter, but grant it now; it is enough that it distinguishes and examines, and, as one may say, measures and weighs all other things. Who says this? Is it only Chrysippus, and Zeno , and Cleanthes? Does not Antisthenes say it? And who is it, then, who has written that the beginning of a right education is the examination of words? Does not Socrates say it? Of whom, then, does Xe...