"A small knowledge of human nature will convince us, that, with far the greatest part of mankind, interest is the governing principle; and that, almost, every man is more or less, under its influence. Motives of public virtue may for a time, or in particular instances, actuate men to the observance of a conduct purely disinterested; but they are not of themselves sufficient to produce a persevering conformity to the refined dictates and obligations of social duty. Few men are capable of making a continual sacrifice of all views of private interest, or advantage, to the common good. It is in vain to exclaim against the depravity of human nature on this account—the fact is so, the experience of every age and nation has proved it, and we must, in a great measure, ch⟨ange⟩ the constitution of man, before we can make it otherwise. ⟨No⟩ institution, not built on the presumptive truth of these ma⟨xims,⟩ can succeed."