言论自由只有在政府认为它自身安全的时候才存在。
最小作用量原理是物理学的一个统一原理。
Innovation is the ability to see change as an opportunity, not a threat.
能源革命的核心是清洁高效,煤炭行业必须主动适应这一趋势。
"We are all apprentices in a craft where no one ever becomes a master."