Note 29 — Chapter II · MORAL PAIN.

Hartmann alone, so far as I am aware, has dealt with this point, incidentally but very clearly: “When I have pain in my teeth or my finger or my stomach; when I lose my wife, my friend, or my situation, if in all these cases we distinguish what is pain and pain alone, and not to be confounded with perception, idea, or thought, we shall recognise that this special element is identical in all the cases.”—Philosophie des Unbewussten, vol. i., Part II., chap. iii.