天然气将发挥关键的桥梁作用，但它不能是最终目的地。

人生最大的幸福是确信我们被人爱着；因为自己而被爱，或者更确切地说，尽管自己而被爱。

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

Change is inevitable; how you respond defines your success.

领导力意味着为了更美好的明天而在今天做出艰难的决定。

The only thing we can know is that we know nothing and that is the highest flight of human wisdom.