and the heat is the one overpowered--nay nor even would it remain at rest in one of the four spots of space (wherein dwell all the four elements)--else Nature which attracts towards itself is the overpowerer therein--whereas it has been asserted that all of them are equal both to overpower and to be overpowered, and this is a contradiction: Therefore this body (such a body) is neither still nor moving,--whereas every body which is surrounded by another body is either still or moving,--and this too is a contradiction; and what leads to contradiction is itself a contradiction; so then our assertion that the elements may possibly be compounded under equality of the powers is a contradiction, and hence its opposite, to wit our saying that such is impossible, is true [reduction ad absurdam]. Wherefore the coming forth of the soul, i.e., its combination with body, occurs only after the method of the third division; and it has been already said that what is after the method of the third division is gained from outside: The soul then is got from without--which is what we wished to show. FOOTNOTES: [10] Mechanical mixture, blending, combination, etc.: compare the Greek mixis, krâsis, and synthesis. SECTION FOURTH =Specification of the Vegetable (Plant) Powers, and Mention of the Need there is for Each One of Them.= Souled bodies, I mean having souls, if considered from the side of their vegetable powers, are found to have in common the getting of nourishment, and to differ in growth and generation (reproduction of offspring); since, among nourishment-taking beings, there are such as do not grow, for example a living individual that has reached full growth and the period of stand still, or that has declined therefrom through withering. Yet every growing thing gets nourishment. Again, among nutriment-taking beings there are such as do not propagate, as seeds that are not yet harvest-ripe, and an animal that has not yet reached puberty. Nevertheless, every propagating thing has inevitably passed through a preceding stage of nutrition; nor will the state (stage) of propagating ever be deprived of nutrition. Further, we find them, beside having the getting of nourishment in common, to have growth also in common, but to differ in the propagation (of offspring) since there are, among growing things, such as do not beget, as an animal not yet arrived at puberty, and the worm.[11] Nevertheless every begetter has already passed through a period of growth; nor will the state (stage) of begetting be deprived of the power of giving growth [to the young that are being produced]. Hence the vegetable powers are three: