The difficulty is that pain seems clearly to be more than merely the absence of its contrary opposite. There is a marked difference between a limb which merely lacks feeling is numb or paralyzed or anesthetized and one that is racked with pain. In the former case it is quite plausible to say that is merely a privation of something, namely normal feeling, that under usual circumstances would belong to the limb. But it is clearly inadequate to describe a limb aching with pain as suffering merely a privation of good health or normal feeling. When pain occurs in the body, there is something new and different in a person’s experience which is not present when the body has simply lost feeling.
G.Stanley Kane, "Evil and Privation" Int J Phil Rel 11 (1980) 43-58
