" Isabel’s private theory of moral proximity, the basis of those obligations that came into existence when we found ourselves close enough to others to be able to witness or feel their needs, or when we were in some other way linked to their plight. We could not deal with all the suffering or need in the world, but we could—and should—deal with that sliver of suffering that was reasonably close to us. "

― Alexander McCall Smith , A Distant View of Everything (Isabel Dalhousie #11)