“Mystery is a commodity for society that willing to buy it.”

“Those who want to buy wisdom remain with out wisdom, because money buys nothing except commodities.”

“Money might not buy happiness, I reflected, but it was a useful commodity, nonetheless.”

“Few men are willing to brave the disapproval of their peers, the censure of their colleagues, the wrath of their society. Moral courage is a rarer commodity than bravery in battle or great intelligence. Yet it is the one essential, vital quality for those who seek to change a world that yields most painfully to change.”

“A novel is a commodity that fulfills a certain need; people need to buy daydreams like they need to buy ice cream or aspirin or gin. They even need to buy a pinch of intellectual catnip now and then to liven up their thoughts...”

“They founded a society based not upon currency and commodities but on the elementary notion that if you failed to raise enough to eat, you would go hungry.”