for any one who has no need of moral laws, who does not wish to live by them. But this elucidation of the moral law is not only weighty, but the only real business of all humanity. This elucidation is imperceptible just as the difference between the dull and the sharp knife is imperceptible. The knife is a knife all the same, and for a person who is not obliged to cut any thing with this knife, the difference between the dull and the sharp one is imperceptible. For the man who has come to an understanding that his whole life depends on the greater or less degree of sharpness in the knife,—for such a man, every whetting of it is weighty, and that man knows that the knife is a knife only when it is sharp, when it cuts that which needs cutting.
This is what happened to me, when I began to write my essay. It seemed to me that I knew all about it, that I understood every thing connected with those questions which had produced on me the impressions of the Lyapinsky house, and the census; but when I attempted to take account of them and to demonstrate them, it turned out that the knife would not cut, and that it must be whetted. And it is only now, after the lapse of three years, that I have felt that my knife is sufficiently sharp, so that I can cut what I choose. I have learned very little that is new. My thoughts are all exactly the same, but they were duller then, and they all scattered and would not unite on any thing; there was no edge to them; they would not concentrate on one point, on the simplest and clearest decision, as they have now concentrated themselves.
