自然实验可以为经济问题提供有价值的见解。
Natural experiments can provide valuable insights into economic questions.
永远不要低估拥有远大愿景的小团队的力量。
God is in his heaven—All's right with the world!
我也没有像鸟禽一般地歌唱,我只静静地微笑,笑我自己幸福无涯。
让这成为一个准则:永远不要给孩子一本你自己不愿意读的书。
"The only way to do great work is to love what you do."