As he stood by the desolate fire, he felt that the only one thing which could assuage his grief would be thorough and complete retribution, brought b… - Arthur Conan Doyle

"If I remember rightly, you on one occasion defined my limits in a very precise fashion."

"Yes," [Watson] answered, laughing. "It was a singular document. Philosophy, astronomy, and politics were marked at zero, I remember. Botany variable, geology profound as regards the mudstains from any region within fifty miles of town, chemistry eccentric, anatomy unsystematic, sensational literature and crime records unique, violin player, boxer, swordsman, lawyer, and self-poisoner by cocaine and tobacco. Those, I think, were the main points of my analysis."

To a great mind nothing is little.

He is the Napoleon of crime, Watson. He is the organizer of half that is evil and nearly all that is undetected in this great city. He is a genius, a philosopher, an abstract thinker. He has a brain of the first order.