In a former work, the Author endeavoured to delineate, in a simple and popular form, the leading facts relating to the Intellectual Powers, and to trace the principles which ought to guide us in the Investigation of Truth. The volume which he now offers to the public attention, is intended as a sequel to these Inquiries; and his object in it is to investigate, in the same unpretending manner, the Moral Feelings of the Human Mind, and the principles which ought to regulate our volitions and our conduct as moral and responsible beings. The two branches of investigation are, in many respects, closely connected; and, on this account, it may often happen, that, in the present work, principles are assumed as admitted or proved, which, in the former, were stated at length, with the evidence by which they are supported.