“To the first, then. He is of a studious habit, and unusually energetic; he applies himself with great ardour to the acquisition of professional knowledge, to the conducting of experiments, to many things. Now, does he do too much?”

“I think not. It may be the character of his mind, to be always in singular need of occupation. That may be, in part, natural to it; in part, the result of affliction. The less it was occupied with healthy things, the more it would be in danger of turning in the unhealthy direction. He may have observed himself, and made the discovery.”

“You are sure that he is not under too great a strain?”

“I think I am quite sure of it.”

“My dear Manette, if he were overworked now⁠—”

“My dear Lorry, I doubt if that could easily be. There has been a violent stress in one direction, and it needs a counterweight.”