Oil and gas will remain part of the energy mix for decades to come, but we must produce them as cleanly as possible.

译文：早知道人生像场大梦，何必被虚名束缚住自己。

领导力是赋能他人，让他们实现曾认为不可能的事。

I’ve learned that sometimes you have to be a little bit brave.

安全困境是国际政治的一个基本特征，因为国家增加自身安全的努力往往会降低其他国家的安全。