PREFACE. WHEREIN Consist Right and Wrong? By what test or criterion may we, in doubtful or disputed cases, determine what is any one's duty or right? -are questions, which, even were the solution of them not often required for practical purposes, must always form a subject of deep philosophical interest. Moral, or ethical science is, in a confined, but, I believe, more common sense, understood to have regard principally to the private duty of individuals; and, in this way, it is associated, in the minds of many people, with disquisitions on temperance, chastity, truth, honesty, diligence, and the like. But to have an idea of the full interest |