 Now that we have traced Aristotle’s way of distinguishing craft from scientific knowledge and from virtue, we can focus on craft as productive. As we have just seen, craft produces something by way of true reasoning. Aristotle also gives us a very interesting sketch of this practical reasoning at work. In an important example from Metaphysics VII we see how the account of the goal is the basis for reasoning which ends in action. In production the form is in the soul of the one who produces; in the case of medicine, health is such a form. To begin with, health is knowledge (epistêmê) and an account (logos) in the soul. Then the physician engages in the following kind of reasoning: since health is this particular state, if the patient is to be healthy, he should have this other particular state, for instance homogeneity, and if he is to have homogeneity, he should have heat. The physician continues to reason in this way until he arrives at the last step, the thing he can do. From this point the process, which aims at health, is called production (1032b1–10).