不要以为春天已经离去无处可寻,绿荫下还有未开放的花朵
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
智能化不是替代人,而是让人从繁重劳动中解放出来。
We must balance energy development with environmental protection to achieve sustainable growth.
Anybody can make history. Only a great man can write it.