I
An ethics of duty uses “deontic” terms (from the ancient Greek term meaning “necessity”) such as “right”, “wrong”, “obligatory” or “forbidden”. These terms refer to what it is “necessary” to do, what we “must” do, or what we “have to” do. They describe our obligations and duties. Moreover, they are used to render a summary judgement, all things considered, on the moral status of an action or a type of action. Accordingly, the ethics of duty is most concerned with the rightness or wrongness of actions, both in the individual case where it asks whether an action that an agent is considering performing or has performed in the past is right or wrong, and in the case of general norms where it asks whether such actions as procuring abortions or such practices as the factory farming of animals are right or wrong. In contrast, virtue ethics uses “aretaic” terms (from the Greek term meaning “virtue” or “excellence”) such as “virtuous”, “good”, “admirable” and, more specifically, “honest”, “courageous” or “modest”. These terms also render a judgement on actions but, as well, they make reference to the internal state of the agent.
II
Duty ethics is pre-eminently concerned with action whereas virtue ethics focuses somewhat more on the agent. Although it does use aretaic terms to describe actions, virtue ethics is more interested in the moral condition of the agent than in whether her action is right or wrong. It focuses on the agent’s character and on the virtues that make up that character. The agent’s actions are seen as expressions of that character and are therefore not the primary object of attention. Even when a virtue ethicist says that a particular action was courageous, for example, this judgement is primarily about the agent’s state of virtue. Such a judgement does not just say that the action appeared to be courageous, but that the agent was courageous in performing it. Accordingly, the notion of “character” is central to virtue ethics.
This raises the question of what we mean by the term “character”. Compare the psychologist’s term “personality” or the way in which dog-breeders talk of the friendly “nature” that some breeds have. These terms sum up the behaviour of the persons or dogs being referred to. There is nothing to observe other than that behaviour. If the behaviour falls into a consistent pattern it is described as evincing a certain sort of character, personality or nature: a person who smiles a lot and gets on easily with people is said to have an outgoing personality; a dog that is good with small children is said to have a sweet nature; and a person who consistently tells the truth is described as being of honest character. What is being described here would seem to be the behaviour.
However, there does seem to be more here than just a summary description of behaviour taken by itself. As is clear from the dog-breeding case, personalities can be shaped by causes and can have causal effects on behaviour. That a sweet nature can be bred shows that it is genetic. Although we may only know what such a nature is from seeing the behaviour it gives rise to, it does seem to be something definite in the genetic makeup of the dog: something that has behavioural effects. Perhaps what psychologists refer to as “personality” is also like this. Although there will be some aspects of it that are acquired through experience, there may also be a genetic element. You may be naturally disposed to being cheerful, and if you have many positive experiences during your life this will reinforce your cheery personality, whereas if you have many disappointments you might lose that natural disposition. So there does seem to be something real within you, whether it is genetic or the result of experience, which comes to expression in your behaviour. It may not be possible to identify it apart from the behaviour that expresses it, but it will be something that structures your behavioural repertoire and provides a motivational basis for your actions. I would suggest that the concept of “character” operates in much the same way. Although it is not an entity or aspect of us that we can identify in its own right, it makes sense to think of it as more than just a summary of what we characteristically do. It is created by our upbringing and by our own efforts at self-formation, perhaps on the basis of natural predispositions that we acquire genetically, and it comes to expression in much of what we do. It takes a greater effort to act in a way that is contrary to our character than to act in a way that is consistent with it. And this shows that it is something real with causal influences on our lives. Perhaps we should consider it to be somewhat like a skill at playing a musical instrument: a genetically enabled disposition that we acquire by habit or training and by a commitment to its values.
It would be a great improvement if, instead of “morally wrong”, one always named a genus such as “untruthful”, “unchaste”, “unjust”. We should no longer ask whether doing something was “wrong”, passing directly from some description of an action to this notion; we should ask whether, e.g., it was unjust; and the answer would sometimes be clear at once.
G. E. M. Anscombe, “Modern Moral Philosophy”, 10
III
Duty ethics is said to make use of “thin” concepts, whereas virtue ethics uses “thick” concepts. This is an implication of saying that duty ethics uses deontic terms and is primarily concerned with whether an action is right or wrong. These are “thin” concepts because they do not offer us much in the way of a description of the action. We do not learn anything about an action when we describe it as “wrong” except that it is morally forbidden. To say of murder that it is wrong is to give no clue as to what it is about an act of murder that makes it wrong or what it is about the agent that attracts our moral condemnation. Indeed, it might even be a tautology that tells us nothing. After all a “murder” is defined as a wrongful killing of a human being. So to say that murder is wrong is to say something that is true by definition. It gives us no substantive information at all. To describe an action as “courageous” or “generous”, on the other hand, is to convey considerably more information. In the first case it suggests that the situation in which the action was performed was one of danger to the agent. It suggests that the agent acted with fortitude and commitment in the face of that danger. It suggests that such fortitude and commitment are excellent ways of being a human being. In this way, because a lot of meaning is conveyed in it, the word “courageous” is deemed to be a “thick” concept. Virtue terms are generally thick in this way.