Little Dorrit by Charles Dickens

The mention of Mr Casby again revived in Clennam's memory the smouldering embers of curiosity and interest which Mrs Flintwinch had fanned on the night of his arrival. Flora Casby had been the beloved of his boyhood; and Flora was the daughter and only child of wooden-headed old Christopher (so he was still occasionally spoken of by some irreverent spirits who had had dealings with him, and in whom familiarity had bred its proverbial result perhaps), who was reputed to be rich in weekly tenants, and to get a good quantity of blood out of the stones of several unpromising courts and alleys.

After some days of inquiry and research, Arthur Clennam became convinced that the case of the Father of the Marshalsea was indeed a hopeless one, and sorrowfully resigned the idea of helping him to freedom again. He had no hopeful inquiry to make at present, concerning Little Dorrit either; but he argued with himself that it might--for anything he knew--it might be serviceable to the poor child, if he renewed this acquaintance. It is hardly necessary to add that beyond all doubt he would have presented himself at Mr Casby's door, if there had been no Little Dorrit in existence; for we all know how we all deceive ourselves--that is to say, how people in general, our profounder selves excepted, deceive themselves--as to motives of action.