Of course, prisons and the system of forced labor do not correct the criminal; they only punish him and ensure society against the evildoer’s further attempts on its peace and quiet. In the criminal himself, prison and the most intense forced labor develop only hatred, a thirst for forbidden pleasures, and a terrible light-mindedness.
These are ideas which will come back amazingly in The Brother's Karamazov. And they are correct. Repentance needs to be caused by the criminal's inner sensations and he needs to arrive to that conclusion himself.
