XXXVI. ‘Hence again the ancients were accustomed to use the words “to take fives” for to count. I think, too, that the word for “all” (_panta_) has been logically formed as though from “five” (_pente_) because the number five is composed of the first numbers. For the others when multiplied by other numbers come out to a product different from themselves; but five if taken an even number of times gives a perfect ten, if an odd, it reproduces itself. I pass over the facts [Sidenote: E] that five is composed of the first two squares, one and four, and that its own square is equal to the sum of the two before it, forming with them the most beautiful of right-angled triangles, and that it is the first number to give sesquiplicate ratio. For perhaps they are not germane to the subject before us. This, however, is more germane, that the number five has a divisory virtue, and Nature divides most things by five. In [Sidenote: F] ourselves are five senses, and there are five parts of the soul, those of growth, sense, appetite, passion, reason. We have five fingers on each hand; seed is most fertile when it parts into five (no instance has been recorded of a woman bearing more than five at a birth); Rhea is said in Egyptian mythology to have given birth to five Gods,[175] a veiled reference to the production of the five worlds out of one matter. Turning to the universe, the surface of earth is divided into five zones, and the Heavens are divided by five circles, two Arctic, two [Sidenote: 430] Tropic, one in the middle, the Equinoctial. Five are the orbits of the planets, if we take those of the sun and Venus and Mercury as one. Lastly, the universe has been composed in the Enharmonic Scale, just as our melody is made up of the arrangement of five Tetrachords, lowest, middle, conjunct, disjunct, highest. And the intervals are five: diesis, semitone, tone, tone and a half, double tone. Thus it seems that Nature loves to make all things on the principle of five, rather than, as Aristotle[176] used to say, of the Sphere.