研究量子引力对于理解早期宇宙至关重要。
The study of quantum gravity is essential for understanding the early universe.
我现在所做的一切，都是为了追求更加完美。
社会学的想象力是最富有成果的自我意识形式。
The motion of the universe is eternal.
"We are all in the gutter, but some of us are looking at the stars."
The greatest glory in living lies not in never falling, but in rising every time we fall.
最终，我们只会后悔没有抓住的机会。