VII. To be sure we will, said Atticus. Moreover, you may even use Greek words when you wish, if by chance you should be at a loss for Latin ones. You are very kind; but I will endeavour to express myself in Latin, except in the case of such words as these—_philosophia_, _rhetorica_, _physica_, or _dialectica_, which, like many others, fashion already sanctions, as if they were Latin. I therefore have called those things _qualitates_ (qualities), which the Greeks call ποιότητες—a word which, even among the Greeks, is not one in ordinary use, but is confined to philosophers. And the same rule applies to many other expressions. As for the Dialecticians, they have no terms in common use: they use technical terms entirely. And the case is the same with nearly every art; for men must either invent new names for new things, or else borrow them from other subjects. And if the Greeks do this, who have now been engaged in such matters for so many ages, how much more ought this licence to be allowed to us, who are now endeavouring to deal with these subjects for the first time? But, said I, O Varro, it appears to me that you will deserve well of your fellow-countrymen, if you enrich them, not only with an abundance of new things, as you have done, but also of words. We will venture, then, said he, to employ new terms, if it be necessary, armed with your authority and sanction. Of these qualities, then, said he, some are principal ones, and others arise out of them. The principal ones are of one character and simple; but those which arise out of them are various, and, as it were, multiform. Therefore, air (we use the Greek word ἀὴρ as Latin), fire, water, and earth are principal ones; and out of them there arise the forms of living creatures, and of those things which are produced out of the earth. Therefore, those first are called principles and (to translate the Greek word) elements: from which air and fire have the power of movement and efficiency: the other divisions—I mean, water and the earth—have the power of receiving, and, as it were, of suffering. The fifth class, from which the stars and winds were formed, Aristotle considered to be a separate essence, and different from those four which I have mentioned above.