唯一真正安全的系统是关闭的,浇筑在混凝土块中,并密封在有武装警卫的铅衬房间中——即便如此,我仍有疑虑。
The teacher must believe in the potential of his students. He must see in each one of them a spark of the divine fire.
Dreams don't run away, it's always ourselves who run away.
Sustainability isn't an option; it's a necessity for the energy sector.