Led, _à priori_, to conclude that distortions must exist, we are enabled to recognize as such the distortions we find: answering in nature, as these do, to expectation. And there is forced on us the truth that a scientific morality arises only as fast as the one-sided conceptions adapted to transitory conditions are developed into both-sided conceptions. The science of right living has to take account of all consequences in so far as they affect happiness, personally or socially, directly or indirectly; and by as much as it ignores any class of consequences, by so much does it fail to be science. § 39. Like the physical view, then, the biological view corresponds with the view gained by looking at conduct in general from the standpoint of Evolution. That which was physically defined as a moving equilibrium, we define biologically as a balance of functions. The implication of such a balance is that the several functions, in their kinds, amounts, and combinations, are adjusted to the several activities which maintain and constitute complete life; and to be so adjusted is to have reached the goal toward which the evolution of conduct continually tends. Passing to the feelings which accompany the performance of functions, we see that of necessity during the evolution of organic life, pleasures have become the concomitants of normal amounts of functions, while pains, positive and negative, have become the concomitants of excesses and defects of functions. And though in every species derangements of these relations are often caused by changes of conditions, they ever re-establish themselves: disappearance of the species being the alternative. Mankind, inheriting from creatures of lower kinds, such adjustments between feelings and functions as concern fundamental bodily requirements; and daily forced by peremptory feelings to do the things which maintain life and avoid those which bring immediate death; has been subject to a change of conditions unusually great and involved. This has considerably deranged the guidance by sensations, and has deranged in a much greater degree the guidance by emotions. The result is that in many cases pleasures are not connected with actions which must be performed, nor pains with actions which must be avoided, but contrariwise. Several influences have conspired to make men ignore the well-working of these relations between feelings and functions, and to observe whatever of ill-working is seen in them. Hence, while the evils which some pleasures entail are dilated upon, the benefits habitually accompanying receipt of pleasures are unnoticed; at the same time that the benefits achieved through certain pains are magnified while the immense mischiefs which pains bring are made little of.