The error we commit by attributing objectivity to moral estimates becomes particularly conspicuous when we consider that these estimates have not only a certain quality, but a certain quantity. There are different degrees of badness and goodness, a duty may be more or less stringent, a merit may be smaller or greater.[15] These quantitative differences are due to the emotional origin of all moral concepts. Emotions vary in intensity almost indefinitely, and the moral emotions form no exception to this rule. Indeed, it may be fairly doubted whether the same mode of conduct ever arouses exactly the same degree of indignation or approval in any two individuals. Many of these differences are of course too subtle to be manifested in the moral judgment; but very frequently the intensity of the emotion is indicated by special words, or by the way in which the judgment is pronounced. It should be noticed, however, that the quantity of the estimate expressed in a moral predicate is not identical with the intensity of the moral emotion which a certain mode of conduct arouses on a special occasion. We are liable to feel more indignant if an injury is committed before our eyes than if we read of it in a newspaper, and yet we admit that the degree of wrongness is in both cases the same. The quantity of moral estimates is determined by the intensity of the emotions which their objects tend to evoke under exactly similar external circumstances. [Footnote 15: It will be shown in a following chapter why there are no degrees of rightness. This concept implies accordance with the moral law. The adjective "right" means that duty is fulfilled.]