Page:1888 Cicero's Tusculan Disputations.djvu/276

270 in the water, and some in the air, Aristotle thinks it ridiculous to imagine that no animal is formed in that part of the universe which is the most capable to produce them. But the stars are situated in the ethereal space; and as this is an element the most subtle, whose motion is continual, and whose force does not decay, it follows, of necessity, that every animated being which is produced in it must be endowed with the quickest sense and the swiftest motion. The stars, therefore, being there generated, it is a natural inference to suppose them endued with such a degree of sense and understanding as places them in the rank of Gods.

XVI. For it may be observed that they who inhabit countries of a pure, clear air have a quicker apprehension and a readier genius than those who live in a thick, foggy climate. It is thought likewise that the nature of a man's diet has an effect on the mind; therefore it is probable that the stars are possessed of an excellent understanding, inasmuch as they are situated in the ethereal part of the universe, and are nourished by the vapors of the earth and sea, which are purified by their long passage to the heavens. But the invariable order and regular motion of the stars plainly manifest their sense and understanding; for all motion which seems to be conducted with reason and harmony supposes an intelligent principle, that does not act blindly, or inconsistently, or at random. And this regularity and consistent course of the stars from all eternity indicates not any natural order, for it is pregnant with sound reason, not fortune (for fortune, being a friend to change, despises consistency). It follows, therefore, that they move spontaneously by their own sense and divinity.

Aristotle also deserves high commendation for his observation that everything that moves is either put in motion by natural impulse, or by some external force, or of its own accord; and that the sun, and moon, and all the stars move; but that those things which are moved by natural impulse are either borne downward by their weight, or upward by their lightness; neither of which things could be the case with the stars, because they move in a regular circle and orbit. Nor can it be said that