Logic teaches one how to reason rightly so as to gain knowledge. The general or universal can be apprehended only in the clearly known particular. Ethics for Aristotle is not a theoretical discipline but a discipline that is concerned with practice, that is, the conduct of the good human life. Right is defined in terms of those actions that are means to a good end. The task of ethics is to order the many things that may good for us in relationship to the highest good, happiness.
Moral virtue involves the formation of character.
Virtue is to be practiced. One becomes an excellent or virtuous person by doing virtuous things. No virtue can exist without the virtue of prudence-the ability to make right and reasonable choices that avoid both excess and defect. Bases morality on rational principles of duty rather than on the consequences of our actions. Existence of God cannot be proved, but must be assumed as a necessary postulate or presupposition for morality.