The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.

Investors should be skeptical of anyone who claims to have a surefire way to beat the market.

当爱不再存在时，你必须学会离开。

When you think it's the most difficult, it's actually the closest you are to success.

在你能爱别人之前，你必须先爱自己。