While it is commonly held that natural evil and suffering undermine religious belief, Kant and Kierkegaard both argue that religion and ethics presuppose discontentment, hardship, and uncertainty. Both argue that moral purity requiresthat this world be imperfect both in the sense of having restricted knowledgeand in the sense that virtue does not lead to happiness. Thus, both thinkersmake constitutive assumptions about the moral structure of the world on prac-tical grounds. But whereas Kant insists that there must be some connection inthis (...) world between morality and happiness, Kierkegaard tends to deny this, portraying this world either as amoral (in 1843–46) or as evil (in 1850–55). (shrink)