‘He [Moriarty] 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.’
‘He [Moriarty] sits motionless, like a spider in the centre of its web, but that web has a thousand radiations, and he knows well every quiver of each of them. He does little himself. He only plans. But his agents are numerous and splendidly organised. Is there a crime to be done, a paper to be abstracted, we will say, a house to be rifled, a man to be removed – the word is passed to the Professor, the matter is organised and carried out. The agent may be caught. In that case money is found for his bail or his defence. But the central power which uses the agent is never caught – never so much as suspected. This was the organization which I deduced, Watson, and which I devoted my whole energy to exposing and breaking up’
‘Sometime when you have a year or two to spare I commend to you the study of Professor Moriarty.’
‘You know my powers, my dear Watson, and yet at the end of three months I was forced to confess that I had at last met an antagonist who was my intellectual equal [Moriarty].’
All quotes was written by Sir Arthur Conan Doyle, said by Sherlock Holmes in the novels.