I'm not a psychopath, I'm a fully functioning sociopath. Do your research.

Of all ghosts the ghosts of our old loves are the worst.

Ex-Professor Moriarty of mathematical celebrity... is the Napoleon of crime, Watson.

The good Watson had at that time deserted me for a wife, the only selfish action I can recall in our association. I was alone.

What is the meaning of it, Watson? said Holmes solemnly as he laid down the paper. "What object is served by this circle of misery and violence and fear? It must tend to some end, or else our universe is ruled by chance, which is unthinkable. But what end? There is the great standing perennial problem to which human reason is as far from an answer as ever.

if i could be assured of your destruction, i would in the interest of the public, cheerfully accept my death.

When you have one of the first brains of Europe up against you, and all the powers of darkness at his back, there are infinite possibilities.