"If your ambition is to maximize short-term gain without regard to the long-term cost, you are better off not knowing the cost. If you want to preserve your personal immunity to the hard problems, it's better never to really understand those problems. There is an upside to ignorance, and a downside to knowledge. Knowledge makes life messier. It makes it a bit more difficult for a person who wishes to shrink the world to a worldview."

“They traded in the market the way card counters in a casino played blackjack: They played only when they had an edge. That’s why they were able to trade for five years without losing money on a single day.”

“Incredibly, at this critical juncture in financial history, after which so much changed so quickly, the only constraint in the subprime mortgage market was a shortage of people willing to bet against it.”

“Spain and France had accumulated debts of more than ten times their annual revenues. Historically, such levels of government indebtedness had led to government default. “Here’s the only way I think things can work out for these countries,” Bass said. “If they start running real budget surpluses. Yeah, and that will happen right after monkeys fly out of your ass.”

“It was neither healthy nor good when public stock exchanges introduced order types and speed advantages that high-frequency traders could use to exploit everyone else. This sort of inefficiency didn't vanish the moment it was spotted and acted upon. It was like a broken slot machine in the casino that pays off every time. It would keep paying off until someone said something about it; but no one who played the slot machine had any interest in pointing out that it was broken.”

“Reg NMS was intended to create equality of opportunity in the U.S. stock market. Instead it institutionalized a more pernicious inequality. A small class of insiders with the resources to create speed were now allowed to preview the market and trade on what they had seen.”

“Looking into it a bit, Jamie found that the model used by Wall Street to price LEAPs, the Black-Scholes option pricing model, made some strange assumptions.”