According to Simon, the intellect is the faculty of the rational soul whereby it thinks. Simon, who follows the Aristotelian doctrine closely, holds this faculty to be immaterial, passive, and separate. It is separate because it does not need to use an organ in order to perform its operation of intellection. It is also passive, but not in the same sense matter is passive. In fact, there are two senses in which something is passive: it can receive forms with or without undergoing qualitative chan