Didascalicon, Book II: the sciences, their parts and their discipline
Chapter XIX. Comparison of the foregoing, and division of the theoretical
The theoretical is divided into theology, mathematics and physics; or thus: The theoretical is divided into the intellectible, the intelligible and the natural; or otherwise: The theoretical is divided into the divine, the doctrinal and the physiological. This theology, therefore, is the same as the intellectible and the divine; the same mathematics as the intelligible and the doctrinal; and the same physics as the physiological and the natural. There are those who think these three parts of the theoretical are signified by a certain mystical name of Pallas, who is imagined to be the goddess of wisdom. For she is called Tritonia, as it were trite gnosis, that is, third knowledge: namely of God, which we named the intellectible; of souls, which we called the intelligible; and of bodies, which we call the natural. And from these three, nevertheless, wisdom takes its name: for although we can fittingly refer the other three, that is ethics, mechanics and logic, to wisdom, yet we more expressly call logic wisdom on account of the eloquence of the voice; mechanics and ethics, because of the circumspection of morals and the prudence or knowledge of works; but the theoretical alone, because of the contemplation of the truth of things, we name wisdom.