Quote from Helioscope

The ag­nos­tics con­tend that pain has evolved blind­ly as a means of caus­ing us to avoid in­jury. There are two things that might be said about the the­o­ry: the first is that a few mo­ments’ thought will pro­duce half a dozen bet­ter ways of achiev­ing the same ob­jec­tive (one of them is in­tel­li­gence — but the more in­tel­li­gent the or­gan­ism, the more pain it is ca­pa­ble of feel­ing). The sec­ond is that by and large it does not work — hu­man be­ings jump their mo­tor­cy­cles over the foun­tain at Caesar’s Palace; dogs chase cars.

What pain does do is act as a mo­ti­va­tor in all sorts of less than ob­vi­ous ways. It is re­spon­si­ble for com­pas­sion and the hot foot; it makes peo­ple who do not be­lieve God would per­mit it think about God. It has been re­marked thou­sands of times that Christ died un­der tor­ture. Many of us have read so of­ten that he was a “hum­ble car­pen­ter” that we feel a lit­tle surge on nau­sea on see­ing the words yet again. But no one ever seems to no­tice that the in­stru­ments of tor­ture were wood, nails, and a ham­mer; that the man who ham­mered in the nails was as much a car­pen­ter as a sol­dier, as much a car­pen­ter as a tor­tur­er. Very few seem even to have no­ticed that al­though Christ was a “hum­ble car­pen­ter,” the on­ly ob­ject we are specif­i­cal­ly told he made was not a ta­ble, or a chair, but a whip.

Castle of Days; Helioscope by Gene Wolfe pp 218 – 219