Why do we assume the world is mathematical? Two arguments against Aquinas
1) he said Being is added to form and matter as they unite in order to actualize them. But as Saurez and his school pointed out, form and matter must first exist to be in that triad. So Aquinas was wrong
2) Descartes says our reason IS our soul. He is right. Hold up, says Aquinas. Reason is a power of the soul, and will is a power of that power, he says. But this leads to contradictions. Aquinas says the greater is prior to the lesser. The will does greater good than the reason, so if will is dependant on the "power" of reason, than the greater is posterior. This a contradiction in his system. Therefore Aquinas was wrong