Explanation
The things without the Being, always one from the other. The contrary that come To be? Devir. However, it must be understood that some things are simple and other complex, and also must understand the way to say devir. Ex.1: This comes To be (the word that is something that subjaz in devir, that is, what it remains). Ex.2: From this to come To be (the word to leave is something that goes to leave of Being).
Being thus the way to observe devir in as the example he is that something that subsiste and can Be that something not subsiste. The contrary produce the change, but not subsiste. They (contrary) alternate. As the white and black man To be at the same time. Or it is white or black. Exactly that either, its not dumb essence. Coming To be if says in many ways. Distinct ways of the transformation of the nature.
Something always comes from the other, never of the nothing, only substantiates it. How this comes To be? The substance comes To be without more. How something comes To be? Summarizing: This chapter is about the formation of the things, that is, of coming to be. Transformation of the contrary (to devir); Explanation of as the things comes to be; Something that comes from another one; The substance comes of the nothing is independent of another one. BOOK I? CHAPTER 8 What it is goes to move is alone the quality? Bank for black color? What dumb in this substance? That crucial element has? Aristotle says that it is the form. Its dumb form, that is, is transformed. Here we will understand the movement that dumb the form. The nature is a Being that it puts into motion and of the new one it forms the substance. Remembering that the opposites are acting in the substance. It is not the substance that modifies and yes the form.