The central question about Christianity concerns Jesus Christ. If he was God in a sense in which no other man has been God, then Christianity is right in some important sense, however Christendom may have failed. To decide whether Jesus was God in some such unique sense, a philosopher cannot forbear to ask just what this claim might mean. If, for example, it does not mean that Jesus of Nazareth knew everything and was all-powerful, it is perplexing what is meant. But a large part of what most Christians mean is surely that Jesus was the best and wisest man of all time; and many Protestants mean no more than that.

The Faith of a Heretic (1959)