Sherlock Holmes

And now Doctor, we've done our work, so it's time we had some play. A sandwich, and a cup of coffee, and then off to violin-land, where all is sweetness, and delicacy, and harmony, and there are no red-headed clients to vex us with their conundrums. (...)

"It saved me from ennui," he answered, yawning. "Alas! I already feel it closing in upon me. My life is spent in one long effort to escape from the commonplaces of existence. These little problems help me to do so."
"And you are a benefactor of the race," said I.
He shrugged his shoulders. "Well, perhaps, after all, it is of some little use," he remarked. "L'homme c'est rien--l'oevre c'est tout,' as Gustave Flaubert wrote to Georges Sand."

-- 2 from Adventure II. The Red-Headed League