It's inevitable to make mistakes when you first start investing. Young people can and deserve to make mistakes, because only after hitting the wall and suffering enough painful punishment will they seriously reflect, understand the words of Warren Buffett and Duan Yongping, and realize there are no shortcuts in investing - the only shortcut is copying others' homework. Everyone knows there are investment "homework" from Warren Buffett, Duan Yongping and Nancy Pelosi in the market, but few people actually copy them. For ordinary people, not copying these is actually a foolish arrogance.

Weakness and ignorance are not obstacles to survival - arrogance is.