自然和历史是地理知识的两个重要来源。

寻求统一的物理理论是我们时代最伟大的智力冒险之一。

超自然就是未被理解的自然。

危机管理的第一课是要走在曲线前面。

The most successful societies in the future will be those that are able to combine the efficiency and technological dynamism of the market with the social safety nets and political stability provided by the state.

Sustainable mining isn't an option anymore - it's our responsibility to future generations.

The real challenge is not in solving the equations, but in understanding what the solutions mean.

音乐是我的呼吸。