资本资产定价模型（CAPM）是理解风险-回报权衡的有用工具，但它远非完美。

Collaboration is key to tackling the world's energy challenges.

Leadership is about empowering others to achieve their best, not just giving orders.

记住，声誉和正直是你最宝贵的资产——而且可能一瞬间就丧失。