In strictness one might say that the ultimate Protestant ideal is to have no outward or specific religion at all—no priests, churches, theology, Scripture or Sabbath, and indeed, no God. This position has not been reached by most Protestants, but I think that the nearer they come to it the more Protestant they are. It is the position of the great German idealists, who have brought the Protestant spirit to its perfect and most speculative expression.

— George Santayana, Dominations and Powers