With the proper training, I could've been an evil genius.

I always thought,' I said, 'that a man became a cop to be shielded from his own criminality.

I loved killing bad guys.

Estoy seguro que a cualquiera le gusta un buen crimen, siempre que no sea la víctima

If I had ever learnt, I should have been a great proficient.

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.

He is the Napoleon of crime, Watson. He is the organizer of half that is evil and of 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 sits motionless, like a spider in the center 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.

If I had only known, I would have been a locksmith.

I’ve always been paranoid about the police, because even when I’m not doing anything illegal I’m thinking about doing something illegal.

Well, she is my most beloved and adored kinswoman, and for her sake I would commit most crimes.

I had field experience, a vocabulary and a criminal mind. I was a danger to myself and others.

I'm sure anyone who likes a good crime, provided it is not the victim.

I have, let me confess it in all humility, a pitiful human wish that someone should know just how clever I have been

I've got a good mind to go out and join a club and beat you over the head with it.