The best mathematics is not just logical—it is intuitive and beautiful.
Labor economics is fundamentally about understanding people’s choices and constraints.
小智慧不及大智慧,寿命短不及寿命长。怎么知道会是这样呢?有一种早上生的菌,活不过一天,不知道白天和黑夜;寒蝉春生夏死、夏生秋死,活不过一年,不知道春秋,这就叫短寿。楚国的南方有一种大树叫“冥灵”,以五百年为春,五百年为秋;上古有“大椿”树,以八千年为春,八千年为秋,这就叫长寿。
Leadership is about making tough decisions today that will benefit everyone tomorrow.
世界就是所有实际情况。