I've seen so much folly and stupidity on the part of our major philanthropic groups, including the world bank.I really have more confidence in building up the more capitalistic ventures like Costco.

Success is not an accident; it’s the result of habits.

Both incentives and punishments elicit powerful responses.

建筑的未来在于轻巧与适应性。

人是一种做交易的动物，没有其他动物会这样做，没有狗会和另一只狗交换骨头。