The real tragedy of the poor is that they can afford nothing but self-denial.
穷人的真正悲剧是他们除了自我否定外什么都负担不起。
The study of quantum gravity is essential for understanding the early universe.
我被抒情诗、短诗所吸引,在那里每一个词都必须精确。
Innovation is not just about technology; it's about changing the way people think and live.
我不害怕说出自己的想法。