5. Ethics.
(a) The Individual.
A strong note of practical moderation pervades the ethics of Aristotle. While Plato's ethical teaching transcended the ordinary limits of human life, and so lost itself in ideal Utopias, Aristotle, on the other hand, sits down to make practical suggestions: He wishes to enquire what the good is, but by this he means, not some ideal good impossible of attainment upon this earth, but rather that good which, in all the circumstances in which men find themselves, ought to be realizable. The ethical theories of Plato and Aristotle are thus characteristic of the two men. Plato despised the world of sense, and sought to soar altogether beyond the common life of the senses. Aristotle, with his love of facts and of the concrete, keeps close within the bounds of actual human experience.
The first question for ethics is the nature of the summum bonum. We desire one thing for the sake of a second, we desire that for the sake of a third. But if this series of means and ends goes on ad infinitum, then all desire and all action are futile and purposeless. There must be some one thing which we desire, not for the sake of anything else, but on its own account. What is this end in itself, this summum bonum, at which all human activity ultimately aims. Everybody, says Aristotle, is agreed about the name of this end. It is happiness. What all men seek, what is the motive of all their actions, that which they desire for the sake of itself and nothing beyond, is happiness. But though all agree as to the name, beyond that there is no agreement. Philosophers, [{315}] no less than the vulgar, differ as to what this word happiness means. Some say it is a life of pleasure. Others say it consists in the renunciation of pleasures. Some recommend one life, some another.
We must repeat here the warning which was found necessary in the case of Plato, who also called the summum bonum happiness. Aristotle's doctrine is no more to be confused with modern utilitarianism than is Plato's. Moral activity is usually accompanied by a subjective feeling of enjoyment. In modern times the word happiness connotes the feeling of enjoyment. But for the Greeks it was the moral activity which the word signified. For Aristotle an action is not good because it yields enjoyment. On the contrary, it yields enjoyment because it is good. The utilitarian doctrine is that the enjoyment is the ground of the moral value. But, for Aristotle, the enjoyment is the consequence of the moral value. Hence when he tells us that the highest good is happiness, he is giving us no information regarding its nature, but merely applying a new name to it. We have still to enquire what the nature of the good is. As he himself says, everyone agrees upon the name, but the real question is what this name connotes.
Aristotle's solution of this problem follows from the general principles of his philosophy. We have seen that, throughout nature, every being has its proper end, and the attainment of this end is its special function. Hence the good for each being must be the adequate performance of its special function. The good for man will not consist in the pleasure of the senses. Sensation is the special function of animals, but not of man. Man's special function is reason. Hence the proper [{316}] activity of reason is the summum bonum, the good for man. Morality consists in the life of reason. But what precisely that means we have still to see.
Man is not only a reasoning animal. As the higher being, he contains within himself the faculties of the lower beings also. Like plants he is appetitive, like animals, sensitive. The passions and appetites are an organic part of his nature. Hence virtue will be of two kinds. The highest virtues will be found in the life of reason, and the life of thought, philosophy. These intellectual virtues are called by Aristotle dianoetic. Secondly, the ethical virtues proper will consist in the submission of the passions and appetites to the control of reason. The dianoetic virtues are the higher, because in them man's special function alone is in operation, and also because the thinking man most resembles God, whose life is a life of pure thought.
Happiness, therefore, consists in the combination of dianoetic and ethical virtues. They alone are of absolute value to man. Yet, though he places happiness in virtue, Aristotle, in his broad and practical way, does not overlook the fact that external goods and circumstances have a profound influence upon happiness, and cannot be ignored, as the Cynics attempted to ignore them. Not that Aristotle regards externals as having any value in themselves. What alone is good in itself, is an end in itself, is virtue. But external goods help a man in his quest of virtue. Poverty, sickness, and misfortune, on the other hand, hinder his efforts. Therefore, though externals are not goods in themselves, they may be a means towards the good. Hence they are not to be despised and rejected. Riches, friends, health, [{317}] good fortune, are not happiness. But they are negative conditions of it. With them happiness is within our grasp. Without them its attainment is difficult. They will be valued accordingly.
Aristotle says little in detail of the dianoetic virtues. And we may turn at once to the main subject of his moral system, the ethical virtues. These consist in the governance of the passions by reason. Socrates was wrong in supposing that virtue is purely intellectual, that nothing save knowledge is needed for it, and that if a man thinks right he must needs do right. He forgot the existence of the passions, which are not easily controlled. A man may reason perfectly, his reason may point him to the right path, but his passions may get the upper hand and lead him out of it. How then is reason to gain control over the appetites? Only by practice. It is only by continual effort, by the constant exercise of self-control, that the unruly passions can be tamed. Once brought under the yoke, their control becomes habit. Aristotle lays the utmost emphasis on the importance of habit in morality. It is only by cultivating good habits that a man becomes good.
Now if virtue consists in the control of the appetites by reason, it thus contains two constituents, reason and appetite. Both must be present. There must be passions, if they are to be controlled. Hence the ascetic ideal of rooting out the passions altogether is fundamentally wrong. It overlooks the fact that the higher form does not exclude the lower--that were contrary to the conception of evolution--it includes and transcends it. It forgets that the passions are an organic part of man, and that to destroy them is to do injury to his [{318}] nature by destroying one of its essential members. The passions and appetites are, in fact, the matter of virtue, reason its form, and the mistake of asceticism is that it destroys the matter of virtue, and supposes that the form can subsist by itself. Virtue means that the appetites must be brought under control, not that they must be eradicated. Hence there are two extremes to be avoided. It is extreme, on the one hand, to attempt to uproot the passions; and it is extreme, on the other, to allow them to run riot. Virtue means moderation. It consists in hitting the happy mean as regards the passions, in not allowing them to get the upper hand of reason, and yet in not being quite passionless and apathetic. From this follows the famous Aristotelian doctrine of virtue as the mean between two extremes. Every virtue lies between two vices, which are the excess and defect of appetite respectively.