Market failures are often not failures of markets, but failures of market design.

The will to learn is an intrinsic motive, one that finds both its source and its reward in its own exercise.

模型的唯一真正检验是其预测未来的能力，而未来总是不确定的。

政府的科学是我必须研究的，比其他所有科学都重要；立法、行政和谈判的艺术应该取代，实际上在某种程度上排除所有其他艺术。