Part 1 of Essay
Sin is ignorance. This is well known Socratic definition of sin which, like everthing Socratic, is an opinion always worthy of attention. The difficulty with the Socratic definition is that it leaves undetermined how ignorance itself is to be more precisely understood, the question of its origin, ect. That is to say. even ....

Part 2 of Essay
.... was not distinctly of this, then his intelligence was already somewhat obsecured before he began, and the question merely returns again. If it is assumed on the contrary that when he began to obsecure his intelligence he was distinctly conscious of it, then sin (even though it be unconsciousness, seeing that this was an induced state) would not lie in the intelligence but in the will, and the question which must be raised is about the relation of he intelligence and the will to one another. With such questions as ....