De Anima

This is a very interesting text because it seems that Aristotle is pretty confident he can outline what a soul is and its many qualities. This is all based on the fact that the soul must lie in the body because it is inseparable. One cannot move the soul separate from the body, so any movement of the body is a movement of the soul. So he spends the first book of De Anime going through various Presocratic views of the soul, which because the soul moves it self must be the primary substance whether that be water, fire, air, or something else. Throughout this book I kept expecting him to assert his own view, but he was just trying to present all the views that don't work so in the second book he can start a completely new view of the soul from scratch.