The bond market is the ultimate truth-teller.

The only thing I care about is the art. If I can't be creative, I don't really see the point in doing anything else.

可持续林业不是一种选择；它是一种义务。

A proof is a device for convincing someone else that a mathematical statement is true.

当你不再担心别人怎么想的那一刻，你就自由了。