Indignation is hatred towards one who has done evil to another.
Explanation--I am aware that these terms are employed in senses somewhat different from those usually assigned.

But my purpose is to explain, not the meaning of words, but the nature of things.

I therefore make use of such terms, as may convey my meaning without any violent departure from their ordinary signification.

One statement of my method will suffice.

As for the cause of the above--named emotions see III.xxvii.Coroll.