Book 12
1
Since (a) this is a possible explanation, and (b) if it is not true, we shall have to regard everything as coming from Night Aristot. Met. 12.6.6 and all things together and not-being,Aristot. Met. 12.2.2, 3. these difficulties may be considered to be solved. There is something which is eternally moved with an unceasing motion, and that circular motion. This is evident not merely in theory, but in fact. Therefore the ultimate heaven must be eternal. Then there is also something which moves it.
2
And since that which is moved while it moves is intermediate, there is something which moves without being moved; something eternal which is both substance and actuality.
2
Now it moves in the following manner. The object of desire and the object of thought move without being moved. The primary objects of desire and thought are the same. For it is the apparent good that is the object of appetite, and the real good that is the object of the rational will.This shows that desire in general (of which appetite and will are the irrational and rational aspects) has as its object the good. Desire is the result of opinion rather than opinion that of desire; it is the act of thinking that is the starting-point.
