Fyodor Dostoyevsky said this quote

It ended by my almost believing (perhaps actually believing) that this was perhaps my normal condition. But at first, in the beginning, what agonies I endured in that struggle! I did not believe it was the same with other people, and all my life I hid this fact about myself as a secret. I was ashamed (even now, perhaps, I am ashamed): I got to the point of feeling a sort of secret abnormal, despicable enjoyment in returning home to my corner on some disgusting Petersburg night, acutely conscious that that day I had committed a loathsome action again, that what was done could never be undone, and secretly, inwardly gnawing, gnawing at myself for it, tearing and consuming myself till at last the bitterness turned into a sort of shameful accursed sweetness, and at last—into positive real enjoyment! Yes, into enjoyment, into enjoyment! I insist upon that. I have spoken of this because I keep wanting to know for a fact whether other people feel such enjoyment? I will explain; the enjoyment was just from the too intense consciousness of one’s own degradation; it was from feeling oneself that one had reached the last barrier, that it was horrible, but that it could not be otherwise; that there was no escape for you; that you never could become a different man; that even if time and faith were still left you to change into something different you would most likely not wish to change; or if you did wish to, even then you would do nothing; because perhaps in reality there was nothing for you to change into.And the worst of it was, and the root of it all, that it was all in accord with the normal fundamental laws of over-acute consciousness, and with the inertia that was the direct result of those laws, and that consequently one was not only unable to change but could do absolutely nothing. Thus it would follow, as the result of acute consciousness, that one is not to blame in being a scoundrel; as though that were any consolation to the scoundrel once he has come to realise that he actually is a scoundrel.