G.E. Moore (1873-1958) invites us to imagine two worlds, one with “mountains, rivers, the sea; trees and sunsets, stars and moon . . . all combined in the most exquisite proportion,” and the other as “one heap of filth, containing everything that is most disgusting to us . . . without one redeeming feature.” Moore said it would be better that the former rather than the latter world exist, even if there were no possibility that it would ever be experienced by any human being.