"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."

"You see, but you do not observe. The distinction is clear."

"It is a mistake to confound strangeness with mystery."

"I have a lot of sympathy for criminals, but none for fools."

"It is a truism that the surest way to conceal a fact is to make it appear ridiculous."