The measurement of merit and demerit is, however, but another form of judgments of application, in which the moral sense can act in only approximate determinations. Here variation and uncertainty find place. But there can be none as to the fact of good desert and guilt where right and wrong are done.

Emotions Awakened.

(5) Emotions or feelings, awakened by the perceptions of right and wrong, obligation, merit and demerit, complete the action of conscience. These feelings are peculiar and original, unlike the feelings springing from any other perceptions and incapable of being resolved into or deduced from others. Psychologically, it is to be remembered, feeling is in no case a part of perception or cognition, but an additional psychical action of a different kind. "A purely cognitive intelligence might have perfect knowledge of things and their relations to itself; it might know that things, or courses of action, would destroy its own existence; it might even know that its own existence was about to be destroyed; but this knowledge alone would imply no feeling. Such intellect would be like a mirror; it would accurately reflect all that passed before it; but it would be as indifferent as the mirror."[19] But knowing is followed by feeling, a different kind of action of the soul. This is not its action in the form of intellect, but in the form of sensibility. It is action of another order—not itself a cognition, but arising out of cognition. This is the place and relation of these moral feelings. They are awakened in the soul by and through the ethical perceptions. They are determined by these, and form the final element in the total action of the conscience.

These moral feelings, while they form one class, as having their origin in the ethical discriminations, exhibit distinguishing differences. These differences develop in a twofold way, presenting special forms of feeling. They must be noted as they differ by these two conditions of their development.

Correspon­dent to Right or Wrong.

First, according as the moral quality, the perception of which awakens them, is good or evil. The soul cannot discern the great distinctions between right and wrong without correspondent emotional awakening. The sensibility is moved by the perception, and takes the form of a feeling of approval for the morally good, and a feeling of reprobation for the wrong. Our language furnishes no single term to designate either of these feelings, but this phraseology is sufficiently descriptive to point them out. The feeling toward the right may be denoted as moral love; that toward wrong as moral aversion. When the quality of rightness or wrongness is exhibited in specially intense degree in particular conduct, the feelings may take the form of ethical admiration or of abhorrence.

Before and After Action.

Secondly, as arising before or after the moral action. If the feeling is awakened in view of action proposed to be done, it may be described, in the absence of a more specific designation, as a sense of obligation to do or not to do the deed—this feeling of obligation being based on a perception of the obligation. From the intellectual discernment the emotional sensibility springs as a sentiment which forms part of the impelling force of conscience. When the feeling arises with respect to an act already done, it takes the nature of ethical satisfaction, a peculiar pleasure in which are blended a sense of self-approbation and of joy, if the deed be right; of self-reproach and remorse, if wrong. Remorse—"a gnawing sense of guilt," whether the feeling be the slightest disquiet of emotion or of agonizing and unsolaceable compunction—appears to be the aptest term to express this state of mind.

Differences of Degree.

Besides the differences thus arising, there are differences in the degree or intensity of these moral feelings. Innumerable causes may affect the differences in this respect. Personal temperament, acquired character, or external conditions may make the feeling greater or less. The mental organization of some persons is more emotional. Education may have given a peculiar development. Temporary circumstances may heighten the excitation. But other things being equal the degree of positiveness in the moral emotions is generally dependent on two things: (a) the clearness with which the moral distinction and the consequent obligation is discerned, and (b) the pureness and tenderness of the person's moral nature. If the ethical idea and obligation are unclearly seen or hardly seen at all, the impression in the feelings must be comparatively slight. But if seen under strong light and with their supreme import, the intuition impresses with greater force. So, too, the state of the whole moral nature is a reason of higher or lower moral sensibility. The more unblighted is the condition of personal life, the more is it responsive to the ethical discernment. Habitual refusal of duty, easy and indifferent familiarity with wrong-doing, or any continued enslavement of the higher nature to the lower, necessarily blunts the delicateness of the sensibilities and lowers the strength of the moral feelings. The process of injury may go on until a condition of callousness is reached which fulfils the striking description: "Seared as with a hot iron."