It appeared at first that the ethics of evolution, when interpreted empirically, might be easily reconciled with the older theory of hedonism, by identifying life with pleasure--holding that the highest or most evolved life is that which contains most pleasure, and that increase of pleasure is therefore the end of conduct. In this way the end of evolutionism would be reduced to the end of utilitarianism. Some utilitarians, on the other hand, sought to get rid of the difficulties of their calculus, by the assumption that the greatest pleasure would be found by following the direction of evolution. But, around both points of view, and the correspondence they assumed to exist between pleasure and evolution, special difficulties were seen to gather. Any hedonistic theory might be met by the assertion that life is essentially a painful experience, and pleasure unattainable; and although the grounds on which this assertion was made seemed to be distinctly erroneous, and hedonism did not appear to be an impossible theory of conduct, yet a similar objection told with greater force against the combination of evolutionism and hedonism. For it holds the double position that the end is to promote life, and that life is to be promoted by adding to pleasure; or else, that the end is pleasure, but that pleasure is to be got by following evolution. It postulates, therefore, that the progress of life tends, and tends even in a proportionate degree, to the increase of pleasure. Yet we could obtain no proof that this progress does, as a matter of fact, increase pleasure in any regular way. On the contrary, the facts of experience seemed to show that life and pleasure do not advance proportionately, nor even always concomitantly. But a still more important and fundamental objection to the hedonistic form of evolutionism was deduced from the nature of pleasure itself; for it can be modified indefinitely, and always follows in the wake of function. Thus the sole intelligible account we can give of what conduct will bring the greatest pleasure is, that it is the conduct which calls forth the greatest amount of successful energising, that which employs the greatest number and the strongest of the human faculties. Hence, instead of being able to measure life by pleasure, we were driven to interpret pleasure in terms of life. [Sidenote: No independent ethical ideal afforded by the theory of evolution.]