Love yourself first, because that's where all the magic begins.
先爱自己,因为这是一切奇迹开始的地方。
The only way to achieve the impossible is to believe it is possible.
"Never stop learning. The world is always changing, and you must change with it."
The true joy of mathematics lies in the act of discovery, not just the result.
每个数学问题都有一个解决方案;只是需要时间和创造力来找到它。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.