"Yet that is the case, with some types especially, for men are so different. You say 'evidence'. Well, there may be evidence. But evidence, you know, can generally be taken two ways. I am an examining lawyer and a weak man, I confess it. I should like to make a proof, so to say, mathematically clear. I should like to make a chain of evidence such as twice two are four, it ought to be a direct, irrefutable proof! And if I shut him up too soon--even though I might be convinced _he_ was the man, I should very likely be depriving myself of the means of getting further evidence against him. And how? By giving him, so to speak, a definite position, I shall put him out of suspense and set his mind at rest, so that he will retreat into his shell. They say that at Sevastopol, soon after Alma, the clever people were in a terrible fright that the enemy would attack openly and take Sevastopol at once. But when they saw that the enemy preferred a regular siege, they were delighted, I am told and reassured, for the thing would drag on for two months at least. You're laughing, you don't believe me again? Of course, you're right, too. You're right, you're right. These are special cases, I admit. But you must observe this, my dear Rodion Romanovitch, the general case, the case for which all legal forms and rules are intended, for which they are calculated and laid down in books, does not exist at all, for the reason that every case, every crime, for instance, so soon as it actually occurs, at once becomes a thoroughly special case and sometimes a case unlike any that's gone before. Very comic cases of that sort sometimes occur. If I leave one man quite alone, if I don't touch him and don't worry him, but let him know or at least suspect every moment that I know all about it and am watching him day and night, and if he is in continual suspicion and terror, he'll be bound to lose his head. He'll come of himself, or maybe do something which will make it as plain as twice two are four--it's delightful. It may be so with a simple peasant, but with one of our sort, an intelligent man cultivated on a certain side, it's a dead certainty. For, my dear fellow, it's a very important matter to know on what side a man is cultivated. And then there are nerves, there are nerves, you have overlooked them! Why, they are all sick, nervous and irritable!... And then how they all suffer from spleen! That I assure you is a regular gold-mine for us. And it's no anxiety to me, his running about the town free! Let him, let him walk about for a bit! I know well enough that I've caught him and that he won't escape me. Where could he escape to, he-he? Abroad, perhaps? A Pole will escape abroad, but not here, especially as I am watching and have taken measures. Will he escape into the depths of the country perhaps? But you know, peasants live there, real rude Russian peasants. A modern cultivated man would prefer prison to living with such strangers as our peasants. He-he! But that's all nonsense, and on the surface. It's not merely that he has nowhere to run to, he is _psychologically_ unable to escape me, he-he! What an expression! Through a law of nature he can't escape me if he had anywhere to go. Have you seen a butterfly round a candle? That's how he will keep circling and circling round me. Freedom will lose its attractions. He'll begin to brood, he'll weave a tangle round himself, he'll worry himself to death! What's more he will provide me with a mathematical proof--if I only give him long enough interval.... And he'll keep circling round me, getting nearer and nearer and then--flop! He'll fly straight into my mouth and I'll swallow him, and that will be very amusing, he-he-he! You don't believe me?"

Raskolnikov made no reply; he sat pale and motionless, still gazing with the same intensity into Porfiry's face.

"It's a lesson," he thought, turning cold. "This is beyond the cat playing with a mouse, like yesterday. He can't be showing off his power with no motive... prompting me; he is far too clever for that... he must have another object. What is it? It's all nonsense, my friend, you are pretending, to scare me! You've no proofs and the man I saw had no real existence. You simply want to make me lose my head, to work me up beforehand and so to crush me. But you are wrong, you won't do it! But why give me such a hint? Is he reckoning on my shattered nerves? No, my friend, you are wrong, you won't do it even though you have some trap for me... let us see what you have in store for me."

And he braced himself to face a terrible and unknown ordeal. At times he longed to fall on Porfiry and strangle him. This anger was what he dreaded from the beginning. He felt that his parched lips were flecked with foam, his heart was throbbing. But he was still determined not to speak till the right moment. He realised that this was the best policy in his position, because instead of saying too much he would be irritating his enemy by his silence and provoking him into speaking too freely. Anyhow, this was what he hoped for.