Part II. of "The Principles of Ethics" is concerned with "The Inductions of Ethics." It opens with a chapter on the confusion of ethical thought due to the fact that, conforming to the general law of evolution, "the set of conceptions constituting ethics, together with the associated sentiments, arise out of a relatively incoherent and indefinite consciousness; and slowly acquire coherence and definiteness at the same time that the aggregate of them differentiates from the larger aggregate with which it originally mingled. Long remaining undistinguished, and then but vaguely discernible as something independent, ethics must be expected to acquire a distinct embodiment only when mental evolution has reached a high stage." "Originally, ethics has no existence apart from religion, which holds it in solution. Religion itself, in its earliest form, is undistinguished from ancestor-worship," which passes, in the second stage, into worship of dead rulers, and is a method of propitiation, prompted by self-interest. Among some peoples, the idea of sin is limited to offences against the gods; and in those other cases where there are ethical commands, the propriety of not offending God is the primary reason given for obeying them. This last phase of thought is illustrated by the religion of the Hebrews, among whom good and bad conduct was but little associated with the intrinsic natures of right and wrong. The popular belief is still that right and wrong become such by divine fiat. The gods of primitive, warlike peoples were gods of war, and the belief in the moral virtue and honor of war still holds large place in the thought of the world. The ethics of enmity, thus taught at the same time with the ethics of amity necessary to the internal life of society, gave rise to utterly inconsistent and contradictory sentiments and ideas, which, in considerable measure, still exist side by side, in our churches and outside them. But, together with these ethical conceptions, there have slowly evolved other, utilitarian conceptions, derived from a recognition of the natural consequences of acts. Authority has been introduced into these conceptions as the source of the duty of action in accordance with them; yet there has generally been also some perception of their fitness. Such utilitarian conceptions are to be found in the later Hebrew writings, among the Egyptians, Greeks, etc. "The divergence of expediency-ethics from theological ethics is well illustrated in Paley, who in his official character derived right and wrong from divine commands, and in his unofficial character derived them from observation of consequences. Since his day, the last of these views has spread at the expense of the first."