"The human intellect is incapable of knowing the divine essence."

"Medicine considers the human body as to the means by which it is cured and by which it is driven away from health."

"The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes."

"The soul is a substance that is neither body nor dependent on the body."

"The human intellect at birth is like a tabula rasa, a pure potentiality that is actualized through education and comes to know."