In this case, one view, which is in some ways the most plausible that can be taken, is that in every case I am merely making an assertion about my own psychology. But what assertion about my own psychology can I be making? Let us take as an example, the view of Prof. Westermarck, which is as plausible a view of this type as any that I know of. He holds that what I am judging when I judge an action to be wrong, is merely that it is of a sort which _tends_ to excite in me a peculiar kind of feeling--the feeling of moral indignation or disapproval. He does not say that what I am judging is that the action in question _is actually_ exciting this feeling in me. For it is obviously not true that, when I judge an action to be much more wrong than another, I am always actually feeling much indignation at the thought of either, or much more indignation at the thought of the one than at that of the other; and it is inconceivable that I should constantly be making so great a mistake as to my own psychology, as to think that I am actually feeling great indignation when I am not. But he thinks it is plausible to say that I am making a judgment as to the _tendency_ of such actions to excite indignation in me; that, for instance, when I judge that one is much more wrong than the other, I am merely asserting the fact, taught me by my past experience, that, if I were to witness the two actions, under similar circumstances, I should feel a much more intense indignation at the one than at the other.[1]