Nothing could exceed his energy when the working fit was upon him; but now and again a reaction would seize… — Arthur Conan Doyle
Nothing could exceed his energy when the working fit was upon him; but now and again a reaction would seize him, and for days on end he would lie upon the sofa in the sitting room, hardly uttering a word or moving a muscle from morning to night.
Source: Wikiquote · CC BY-SA 4.0
