“Johannes Climacus” in Concluding Unscientific Postscript, while criticizing philosophical speculation, hastens to add that within its proper sphere, philosophy served a very beneficial function. “All honor to philosophy, all praise to everyone who brings a genuine devotion to its service.”15 What Kierkegaard does, though, is use the critical tools of philosophy to show that philosophy cannot be used to prove or defend the rationality of Christianity. Philosophy has its uses, but it cannot help us in