“Can you buy an entire chess set in a pawn shop?”

“He who fears an isolated Queen's Pawn should give up Chess.”

“Books are educational; so you can buy as many as you want." Sophie Kinsella, shopping at the Limelight Marketplace”

“Humanity I love you because when you're hard up you pawn your intelligence to buy a drink.”

“Buy what you don’t have yet, or what you really want, which can be mixed with what you already own. Buy only because something excites you, not just for the simple act of shopping.”

“I guess money can't buy happiness if you shop in the wrong places.”

“Reductio ad absurdum, which Euclid loved so much, is one of a mathematician's finest weapons. It is a far finer gambit than any chess play: a chess player may offer the sacrifice of a pawn or even a piece, but a mathematician offers the game.”

“If they think you're a hero, they're wrong. After you die, you don't get to be Beowulf or Perseus or Rama any more. Whole different set of rules. Chess, not checkers. Go, not chess. You understand?”

“Whoever said money can’t buy happiness didn’t know where to shop.”

“Fancy what a game at chess would be if all the chessmen had passions and intellects, more or less small and cunning; if you were not only uncertain about your adversary's men, but a little uncertain also about your own; if your knight could shuffle himself on to a new square by the sly; if your bishop, in disgust at your castling, could wheedle your pawns out of their places; and if your pawns, hating you because they are pawns, could make away from their appointed posts that you might get checkmate on a sudden. You might be the longest-headed of deducted reasoners, and yet you might be beaten by your own pawns. You would be especially likely to be beaten, if you depended arrogantly on your mathematical imagination, and regarded your passionate pieces with contempt.
Yet this imaginary chess is easy compared with the game a man has to play against his fellow-men with other fellow-men for his instruments. He thinks himself sagacious, perhaps, because he trusts no bond except that of self-interest; but the only self-interest he can safely rely on is what seems to be such to the mind he would use or govern. Can he ever be sure of knowing this?”