The best way to measure your investing success is not by whether you're beating the market but by whether you've put in place a financial plan and a behavioral discipline that are likely to get you where you want to go.
Representation theory provides the language in which many number-theoretic phenomena can be expressed.
每个人心里都有一座围城，外面的人想进去，里面的人想出来。
"Every story has an end, but in life every end is just a new beginning."
盈利和可持续性必须齐头并进，没有其他前进的道路。