Kierkegaard wrote his "Concluding Unscientific Postscript to Philosophical Fragments" in 1846 and here he tried to explain the intent of the first part of his authorship. He said, "Christianity will not be content to be an evolution within the total category of human nature; an engagement such as that is too little to offer to a god. Neither does it even want to be the paradox for the believer, and then surreptitiously, little by little, provide him with understanding, because the martyrdom of faith (to crucify one's understanding) is not a martyrdom of the moment, but the martyrdom of continuance." The second part of his authorship was summed up in "Practice in Christianity":