The Peripatetic axiom is: `Nothing is in the intellect that was not first in the senses` (Latin: `Nihil est in intellectu quod non prius in sensu`). It is found in De veritate, q. 2 a. 3 arg. 19. Thomas Aquinas adopted this principle from the Peripatetic school of Greek philosophy, established by Aristotle. Aquinas argued that the existence of...