"Well, at all events it is a good thing that there's no pain when the poor fellow's head flies off," he remarked.
"Do you know, though," cried the prince warmly, "you made that remark now, and everyone says the same thing, and the machine is designed with the purpose of avoiding pain, this guillotine I mean; but a thought came into my head then: what if it be a bad plan after all? You may laugh at my idea, perhaps--but I could not help its occurring to me all the same. Now with the rack and tortures and so on--you suffer terrible pain of course; but then your torture is bodily pain only (although no doubt you have plenty of that) until you die. But here I should imagine the most terrible part of the whole punishment is, not the bodily pain at all--but the certain knowledge that in an hour,--then in ten minutes, then in half a minute, then now--this very instant--your soul must quit your body and that you will no longer be a man-- and that this is certain, certain! That's the point--the certainty of it. Just that instant when you place your head on the block and hear the iron grate over your head--then--that quarter of a second is the most awful of all.
This is not my own fantastical opinion--many people have thought the same; but I feel it so deeply that I'll tell you what I think. I believe that to execute a man for murder is to punish him immeasurably more dreadfully than is equivalent to his crime. A murder by sentence is far more dreadful than a murder committed by a criminal. The man who is attacked by robbers at night, in a dark wood, or anywhere, undoubtedly hopes and hopes that he may yet escape until the very moment of his death. There are plenty of instances of a man running away, or imploring for mercy--at all events hoping on in some degree--even after his throat was cut. But in the case of an execution, that last hope--having which it is so immeasurably less dreadful to die,--is taken away from the wretch and certainty substituted in its place! There is his sentence, and with it that terrible certainty that he cannot possibly escape death--which, I consider, must be the most dreadful anguish in the world. You may place a soldier before a cannon's mouth in battle, and fire upon him--and he will still hope. But read to that same soldier his death-sentence, and he will either go mad or burst into tears. Who dares to say that any man can suffer this without going mad? No, no! it is an abuse, a shame, it is unnecessary--why should such a thing exist? Doubtless there may be men who have been sentenced, who have suffered this mental anguish for a while and then have been reprieved; perhaps such men may have been able to relate their feelings afterwards. Our Lord Christ spoke of this anguish and dread. No! no! no! No man should be treated so, no man, no man!"
Prince Myshkin. The Idiot by Fyodor Dostoyevsky.