What, then, is virtue, or a virtue? To understand Virtue Ethics, we must have a clear understanding of the nature of virtue.
Definition: 'Virtue' is any disposition of character, or personality, that we desire in ourselves or others.
Virtues, therefore, are those dispositions of character which we think are good. Virtue Ethics, therefore, will be a normative theory which emphasizes attaining those dispositions we think are good (i.e., the virtues). As such, this type of moral theory will emphasize character development rather than the articulation of abstract moral principles to guide all our actions (as we will see is the heart of both Teleological and Deontological Ethics).
So, Virtue Ethics is a type of normative theory which guides us in the development of good characteristics. But, what are good characteristics, and what makes them good? For the Greeks, this question was easy to answer, though for Modern philosophers it seems a little more ambiguous (we will return to this problem later).
In Greek culture there were four basic or cardinal virtues recognized as necessary for attaining the good life:
Thus, when someone like Aristotle speaks of a morally virtuous person, he (and his contemporaries) means a person who demonstrates all four of these basic virtues. And, the point of moral discourse, according to Aristotle, is to help us understand why these particular characteristics are desirable, and how best to attain them. These are the goals at the heart of Aristotle's book, the Nicomachean Ethics. But, we must understand that his moral theory is part of a larger philosophical enterprise and must, therefore, be seen in the context of Aristotle's overall method of doing philosophy.
Definition: 'Eudaimonia' is a state of complete fulfillment or well being. Flourishing.
It is important to note that for the Greeks happiness (i.e., eudaimonia) is not a psychological state! A plant can be happy so long as it reaches a state of fulfillment or flourishing. This may sound strange to you, but it is essential to understand Aristotle's theory that to be happy has little to do with how you feel.
Everyone, says Aristotle, agrees that the goal of human life is to be happy, but there is disagreement about how we actually attain happiness.
In each of these cases we find something which is A goal, but not THE goal of human life. To really understand what the final goal of human life is, we must first understand what it is to be human! Only by understanding what a human being is, can we hope to know what the goal of human life is.
Clearly, humans are living beings, but there are many different kinds of living things (i.e., 'psyche' or souls), so we must discover what is unique to the human soul as opposed to the non-human soul.
Ultimately, for Aristotle, attaining virtue is a matter of disciplining oneself to live a balanced rational life guided by the mean which lies between the extremes of excess and deficiency. Moral virtue is a tool which is necessary for human beings, the rational political animal, to survive in political institutions. There is no significant morality outside the political context, because moral virtue only arises within the political context!
Now we must return to the question we raised at the beginning of our discussion of Aristotle. We said that the cardinal virtues were those dispositions which were considered good. We can now see why Aristotle thought these particular dispositions were good: they enable us to flourish in the political context. But notice that if we disagree with Aristotle's analysis of what a human being is, we loose the justification for holding up the four cardinal virtues as the tools for achieving a good life. And, many philosophers WILL disagree with Aristotle about human nature. If we agree with them, we are left without a clear guide to which virtues are the right ones to lead us to the good life. In fact, what's to stop us from saying that deception or cruelty are virtues if they correspond with our notion of what it is to be a human being?
It seems that any virtue-based moral theory must presuppose some more basic moral principle which tells us what the good is, and only then will we be able to identify those dispositions which help us to attain that goal. That is, it seems that Virtue Ethics ultimately depends upon some other kind of moral theory to guide it to a definition of THE GOOD.