to fulfil the idea of a perfect manhood.[5] 'When I dared question: "It is beautiful, But is it true?" Thy answer was, "In truth lives beauty."'[6] 3. _Politics_ is still more closely related to Ethics, and indeed Ethics may be said to comprehend Politics. Both deal with human action and institution, and cover largely the same field. For man is not merely an individual, but is a part of a social organism. We cannot consider the virtues of the individual life without also considering the society to which he is related, and the interaction of the whole and its part. Politics is usually defined as the science of government, which of course, involves all the institutions and laws affecting men's relations to each other. But while Politics is strictly concerned only with the outward condition of the state's well-being and the external order of {17} the community, Ethics seeks the internal good or virtue of mankind, and is occupied with an ideal society in which each individual shall be able to realise the true aim and meaning of life. But after all, as Aristotle said, Politics is really a branch of Ethics, and both are inseparable from, and complementary of each other. On the one hand, Ethics cannot ignore the material conditions of human welfare nor minimise the economic forces which shape society and make possible the moral aims of man. On the other hand, Economics must recognise the service of ethical study, and keep in view the moral purposes of life, otherwise it is apt to limit its consideration to merely selfish and material ends. V. While Ethics is thus closely connected with the sciences just named, there are two departments of knowledge, pre-supposed indeed in all mental studies, which in a very intimate way affect the science of Ethics. These are Metaphysics on the one hand and Psychology on the other.