Energy security is the cornerstone of national security. We must make every effort to ensure the security of national energy supply.
乐观是正常的，但一些幸运的人比我们其他人更乐观。
有时候最简单的旋律最有力量。
Science is not just about finding answers, but about asking the right questions.
The foundation of morality is sympathy for others.
京东的成功来自于对用户体验的极致追求。
The more you know, the more you realize how little you know.