Fyodor Dostoyevsky 
Notes from the Underground [EPUB ebook] 

I am a sick man…. I am a spiteful man. I am an unattractive man. I believe my liver is diseased. However, I know nothing at all about my disease, and do not know for certain what ails me. I don’t consult a doctor for it, and never have, though I have a respect for medicine and doctors. Besides, I am extremely superstitious, sufficiently so to respect medicine, anyway (I am well-educated enough not to be superstitious, but I am superstitious). No, I refuse to consult a doctor from spite. That you probably will not understand. Well, I understand it, though. Of course, I can’t explain who it is precisely that I am mortifying in this case by my spite: I am perfectly well aware that I cannot ‘pay out’ the doctors by not consulting them; I know better than anyone that by all this I am only injuring myself and no one else. But still, if I don’t consult a doctor it is from spite. My liver is bad, well–let it get worse!
I have been going on like that for a long time–twenty years. Now I am forty. I used to be in the government service, but am no longer. I was a spiteful official. I was rude and took pleasure in being so. I did not take bribes, you see, so I was bound to find a recompense in that, at least. (A poor jest, but I will not scratch it out. I wrote it thinking it would sound very witty; but now that I have seen myself that I only wanted to show off in a despicable way, I will not scratch it out on purpose!)
When petitioners used to come for information to the table at which I sat, I used to grind my teeth at them, and felt intense enjoyment when I succeeded in making anybody unhappy. I almost did succeed. For the most part they were all timid people–of course, they were petitioners. But of the uppish ones there was one officer in particular I could not endure. He simply would not be humble, and clanked his sword in a disgusting way. I carried on a feud with him for eighteen months over that sword. At last I got the better of him. He left off clanking it. That happened in my youth, though…