I could not rest, Watson, I could not sit quiet in my chair, if I thought that such a man as Professor Moriarty were walking the streets of London unchallenged.
Arthur Conan Doyle (2006). “The Best of Sherlock Holmes: Literary Touchstone Classic”, p.91, Prestwick House Inc
![I could not rest, Watson, I could not sit quiet in my chair, if I thought that such a man as Professor Moriarty were walking the streets of London unchallenged.](http://cdn.quoteddaily.com/images/arthur-conan-doyle/i-could-not-rest-watson-i-could-not-sit-quiet-in-my-chair-if-i-thought-that-such-a-man.jpg)