领导力就是在最重要的时候做出艰难的决定。

The past is never dead. It's not even past.

Some wounds never heal, they just stop bleeding.

The decline of violence may be the most significant and least-appreciated development in the history of our species.

能源的未来在于平衡传统资源和可再生替代品。

世界是一个混乱和困惑的地方，唯一理解它的方法就是找到自己的道路。