For the past 33 years， I have looked in the mirror every morning and asked myself: 'If today were the last day of my life， would I want to do what I am about to do today？' And whenever the answer has been 'No' for too many days in a row， I know I need to change something.

阅读是不动的旅行，写作是让他人旅行。

Natural gas will play a critical role in the energy mix as we move toward a lower-carbon future.

采矿业的创新不是可选的-它对我们未来至关重要。