你知道，在中世纪的英国，但你遇见一个非常穷苦的人，你会认为他“不走运”，直接地说，那些不被幸运之神眷顾的人。
You know, in the Middle Ages, in England, when you met a very poor person, that person would be described as an "unfortunate" -- literally, somebody who had not been blessed by fortune, an unfortunate.
孔子说：“不到苦思冥想时，不去提醒；不到欲说无语时，不去引导。不能举一例能理解三个类似的问题，就不要再教他了。”
The happiest people are those who have found purpose while still appreciating life's simple joys.
信息消耗的东西相当明显：它消耗接收者的注意力。因此，信息的丰富导致注意力的贫乏。
研究量子引力对于理解早期宇宙至关重要。
The past is a kind of future that has already happened.