My Life Is Spent In

He [professor Moriarty] 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.

I Have Heard, Mr. Holmes, That You Can See Deeply Into The Manifold Wickedness Of The Human Heart.

There Is Danger For Him Who Taketh The Tiger Cub, And Danger Also For Whoso Snatches A Delusion From A Woman.

I Consider That A Man's Brain Originally Is Like A Little Empty Attic, And You Have To Stock It With Such Furniture As You Choose. [...] It Is A Mistake To Think That That Little Room Has Elastic Walls And Can Distend To Any Extent. [...] It Is Of The Highest Importance, Therefore, Not To Have Useless Facts Elbowing Out The Useful Ones.

Violence Recoils On The Violent.