化学不仅是一门科学,更是一种思维方式。
Leadership means making tough decisions today for a better tomorrow.
It is not the task of history to judge, but to understand.
历史不仅仅是过去的故事,它也是现在的镜子和未来的窗口。
Democracy is the only system that can reflect the human spirit's indomitable will to be free.