Nietzsche proclaimed with great blast of trumpets, if we may so call his rhetorical display of phrases, that we need a revaluation of all values; but the best he could do was to establish a standard of valuation of his own. Every man in this world attains his mode of judging values according to his character, which is formed partly by inherited tendencies, partly by education and is modified by his own reflections and experiences. There are but few persons in this world who are clearsighted enough to formulate the ultimately guiding motive of their conduct. Most people follow their impulses blindly, but in all of them conduct forms a certain consistent system corresponding to their own idiosyncrasy. These impulses may sometimes be contradictory, yet upon the whole they will all agree, just as leaves and blossoms, roots and branches of the same tree will naturally be formed according to the secret plan that determines the growth of the whole organism. Those who work out a specially pronounced system of moral conduct do not always agree in practical life with their own moral principle, sometimes because they wilfully misrepresent it and more frequently because their maxims of morality are such as they themselves would like to be, while their conduct is such as they actually are. Such are the conditions of life and we will call that principle which as an ultimate _raison d'être_ determines the conduct of man, his standard of valuation. We will see at once that there is a different standard for each particular character. A scientist as a rule looks at the world through the spectacles of the scientist. His estimation of other people depends entirely on their accomplishments in his own line of science. Artist, musician, or sculptor does the same. To a professional painter scarcely any other people exist except his pupils, his master, his rivals and especially art patrons. The rest of the world is as indifferent as if it did not exist; it forms the background, an indiscriminate mass upon which all other values find their setting. All the professions and vocations, and all the workers along the various lines of life are alike in that every man has his own standard of valuation.