没有目标的利润就像没有催化剂的化学反应，可能发生，但缓慢而低效得令人痛苦。

False happiness renders men stern and proud， and that happiness is never communicated. True happiness renders them kind and sensible， and that happiness is always shared.

In the face of challenges, we must have the courage and wisdom to overcome difficulties.

当信息不对称或激励不一致时，市场就会失灵。