The subject matter of ethics is the conduct termed good or bad. Conduct is the adjustment of acts to ends. The evolution of conduct is marked by increasing perfection in the adjustment of acts to the furtherance of individual life, the life of offspring, and social life. The ascription of ethical character to the highly evolved conduct of man in relation to these ends implies the fundamental assumption, that “life is good or bad according as it does, or does not, bring a surplus of agreeable feeling.” The ideal of moral science is rational deduction: a rational utilitarianism can be attained only by the recognition of the necessary laws—physical, biological, psychological, and sociological—which condition the results of actions; among these the biological laws have been largely neglected in the past, though they are of the utmost importance as furnishing the link between life and happiness. The “psychological view,” again, explains the origin of conscience. In the course of development man comes to recognize the superiority of the higher and more representative feelings as guides to action; this form of self-restraint, however, is characteristic of the non-moral restraints as well, of the political, social, and religious controls. From these the moral control proper has emerged—differing from them in that it refers to intrinsic instead of extrinsic effects—and the element of coerciveness in them, transferred, has generated the feeling of moral compulsion (which, however, “will diminish as fast as moralization increases").