白云谦卑地站在天边,晨光给它披上壮丽的光彩。
I think music is a great healer. It's something that can make you feel better when you're down.
死亡本身并不可怕;但我们害怕成为未知,去向未知。
我所知道的最大快乐,是祕密的做善行,然后被人意外的发现。
The best way to learn econometrics is by doing—working with real data and real problems.