Aristotle's On the Soul is among the most important books on the pre-modern account of soul. Here, Aristotle presents a view of the psyche that avoids the simplifications both of the materialists and those who believe in the soul as something quite distinct from body. On the Soul also includes Aristotle's idiosyncratic and influential account of light and colors. On Memory and Recollection continues the investigation of some of the topics introduced in On the Soul. Aristotle lived from 384 to 322 BCE. he was a student of Plato for twenty years, and for the next twenty five years he was one of the most prolific of philosophic writers, as well as a keen biological observer. For almost 2000 years his teachings dominated the centers of learning in Europe and the Middle East. For all those willing to make the effort to follow his arguments, he is still a living thinker of great power.