Theory of Moral Sentiments

Those systems which make sentiment the principle of approbation may be divided into two different classes.

I. According to some the principle of approbation is founded upon a sentiment of a peculiar nature, upon a particular power of perception exerted by the mind at the view of certain actions or affections; some of which affecting this faculty in an agreeable and others in a disagreeable manner, the former are stamped with the characters of right, laudable, and virtuous; the latter with those of wrong, blamable, and vicious. This sentiment being of a peculiar nature distinct from every other, and the effect of a particular power of perception, they give it a particular name, and call it a moral sense.

II. According to others, in order to account for the principle of approbation, there is no occasion for supposing any new power of perception which had never been heard of before: Nature, they imagine, acts here, as in all other cases, with the strictest economy, and produces a multitude of effects from one and the same cause; and sympathy, a power which has always been taken notice of, and with which the mind is manifestly endowed, is, they think, sufficient to account for all the effects ascribed to this peculiar faculty.

I. Dr. Hutcheson had been at great pains to prove that the principle of approbation was not founded on self-love. He had demonstrated too that it could not arise from any operation of reason. Nothing remained, he thought, but to suppose it a faculty of a peculiar kind, with which Nature had endowed the human mind, in order to produce this one particular and important effect. When self-love and reason were both excluded, it did not occur to him that there was any other known faculty of the mind which could in any respect answer this purpose.

This new power of perception he called a moral sense, and supposed it to be somewhat analogous to the external senses. As the bodies around us, by affecting these in a certain manner, appear to possess the different qualities of sound, taste, odor, color; so the various affections of the human mind, by touching this particular faculty in a certain manner, appear to possess the different qualities of amiable and odious, of virtuous and vicious, of right and wrong.

The various senses or powers of perception, from which the human mind derives all its simple ideas, were, according to this system, of two different kinds, of which the one were called the direct or antecedent, the other, the reflex or consequent senses. The direct senses were those faculties from which the mind derived the perception of such species of things as did not presuppose the antecedent perception of any other. Thus sounds and colors were objects of the direct senses. To hear a sound or to see a color does not presuppose the antecedent perception of any other quality or object. The reflex or consequent senses, on the other hand, were those faculties from which the mind derived the perception of such species of things as presupposed the antecedent perception of some other. Thus harmony and beauty were objects of the reflex senses. In order to perceive the harmony of a sound, or the beauty of a color, we must first perceive the sound or the color. The moral sense was considered as a faculty of this kind. That faculty, which Mr. Locke calls reflection, and from which he derived the simple ideas of the different passions and emotions of the human mind, was, according to Dr. Hutcheson, a direct internal sense. That faculty again by which we perceived the beauty or deformity, the virtue or vice of those different passions and emotions, was a reflex, internal sense.