The comfort of the rich depends upon an abundant supply of the poor.
富人的舒适依赖于穷人的大量供应。
宇宙是可以理解的,因为它受我们能够理解的法则支配。
过去是一个异国,那里的人做事方式不同。
如果我们想应对全球粮食安全的挑战,跨行业和跨国界的合作至关重要。
The art of teaching consists in large part of the ability to awaken the natural curiosity of young minds and to satisfy it with the nourishment of knowledge.
人们不是因为变老而停止追求梦想,而是因为停止追求梦想而变老。
The past is always there, and it's always different every time you look at it.