The world is full of signs and wonders that come, and go, and if you are lucky you might catch the tail of one as it flies past.

研究量子引力对于理解早期宇宙至关重要。

美始于你决定做自己的那一刻。

历史的终结不是事件的终结，而是人类政治和社会制度演进的终结。