Stay focused, focus on your goals.
单一货币的最大优势在于消除了汇率不确定性并降低了交易成本，从而促进贸易和投资。
The world is full of obvious things which nobody by any chance ever observes.
End of the road, time to let go
数学中最激动人心的时刻是当你看到以前似乎不相关的事物之间的联系时。
Life's too short to hang out with people who aren't resourceful.
The conjectures of the Langlands program are not merely problems to be solved but a vision of how mathematics should be.