理解劳动力市场的最佳方式是观察现实数据，而不仅仅是理论模型。
The best way to understand labor markets is to look at real-world data, not just theoretical models.
Thinking is the hardest work there is, which is probably the reason why so few engage in it.
The essence of mathematics lies in its freedom.
以目标为导向的公司比那些只关注利润的公司更持久。
我训练，我相信，我尊重，我耐心，我保持积极。