来时惊动很大，走时没有任何声响。

人将会死，国家会建立亦会倾颓；但思想将永远长存。思想可承受的远大过死亡。

The true teacher defends his pupils against his own personal influence.

Energy security and affordability must remain priorities as we transition to lower-carbon solutions.

能源行业不仅仅是开采；它是关于创新和可持续性。