7. And of moral.
And hence it follows that moral knowledge is as capable of real certainty as mathematics. For
certainty being but the perception of the agreement or disagreement of our ideas, and demonstration nothing but
the perception of such agreement, by the intervention of other ideas or mediums; our moral ideas, as well as
mathematical, being archetypes themselves, and so adequate and complete ideas; all the agreement or
disagreement which we shall find in them will produce real knowledge, as well as in mathematical figures.