成功没有捷径，只有脚踏实地。

The faster technology evolves, the more we must invest in human wisdom.

The best way to learn econometrics is by doing—working with real data and real problems.

翻译：这是道家思想的一种体现，认为天地和圣人都对万物一视同仁，无偏爱之心。

每把锁都有钥匙，每个问题都有解决方案。