"Listen. This is my hard drive and it only makes sense to put things in there that are useful. REALLY useful. Ordinary people fill their heads with all kinds of rubbish. That makes it hard to get at the stuff that matters. Don’t you see?"
- The Great Game
"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. A fool takes in all the lumber of every sort that he comes across, so that the knowledge which might be useful to him gets crowded out, or at best is jumbled up with a lot of other things, so that he has a difficulty in laying his hands upon it."
- A Study in Scarlet, Chapter 2