创新是一段旅程，而非单一事件。

A mathematician's intuition is as important as rigorous proof.

In the quest for understanding the cosmos, every question answered leads to a dozen more.

The only real journey is the one within.

资本资产定价模型（CAPM）是理解风险-回报权衡的有用工具，但它并非对现实的完美描述。