Instead of applying innate notions of good and evil, the mind, having been taught the several rules enjoined by these authorities, compares any given action with these rules, and pronounces accordingly.
A rule is an aggregate of simple Ideas; so is an action; and the conformity required is the ordering of the action so that the simple ideas belonging to it may correspond to those required by the law.
Thus, all Moral Notions may be reduced to the simple ideas gained by the two leading sources--Sensation and Reflection.

Murder is an aggregate of simple ideas, traceable in the detail to these sources.
The summary of Locke's views is as follows:-- I .-- With reference to the Standard of Morality, we have these two great positions-- First, That the production of pleasure and pain to sentient beings is the ultimate foundation of moral good and evil.
Secondly, That morality is a system of Law, enacted by one or other of three different authorities.
II .-- In the Psychology of Ethics, Locke, by implication, holds-- First, That there is no innate moral sentiment; that our moral ideas are the generalities of moral actions.

That our faculties of moral discernment are--( 1) those that discern the pleasures and pains of mankind; and (2), those that comprehend and interpret the laws of God, the Nation, and Public Opinion.

And (3) he counts that the largest share in the formation of our Moral Sentiments is due to Education and Custom.
[We have seen his views on Free-will, p.

413.] As regards the nature of Disinterested Action, he pronounces no definite opinion.