The Basis of Morality by Part 3 Chapter 6 Page 22

sines and tangents. I give therefore the following definition: the amount of injustice in my conduct varies as the amount of evil, which I thereby bring on another, divided by the amount of advantage, which I myself gain; and the amount of justice in my conduct varies as the amount of advantage, which injury done to another brings me, divided by the amount of harm which he thereby suffers.

We have further to notice a double form of injustice which is specifically different from the simple kind, be it never so great. This variety may be detected by the fact that the amount of indignation shown by disinterested witnesses, which is always proportional to the amount of wrong inflicted, never reaches the maximum except when it is present. We then see how the deed is loathed, as something revolting and heinous, as an ????