Raskolnikov thought a minute.

“Listen, Porfiry Petrovitch. You said just now you have nothing but psychology to go on, yet now you’ve gone on mathematics. Well, what if you are mistaken yourself, now?”

“No, Rodion Romanovitch, I am not mistaken. I have a little fact even then, Providence sent it me.”

“What little fact?”

“I won’t tell you what, Rodion Romanovitch. And in any case, I haven’t the right to put it off any longer, I must arrest you. So think it over: it makes no difference to me now and so I speak only for your sake. Believe me, it will be better, Rodion Romanovitch.”

Raskolnikov smiled malignantly.