The most beautiful works of art are those in which necessity and freedom are in perfect balance.

想象力只是模仿，批判精神才能创造。

On pivoting: "If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve."

Investors should avoid the temptation to chase hot stocks or sectors.