自由是在法律允许范围内做任何事的权利。

I never buy a stock unless I can see a clear path to a 50% return.

Don’t take it personally when someone turns you down. Assume they are like you: busy， occupied， distracted. Try again later. It’s amazing how often a second try works.

除非你相信对世界的知识以及由此产生的力量对人类具有内在价值，否则你不可能成为科学家。

Every business decision we make in forestry must pass the test of time - will this still make sense in 100 years?

世界上充满了门，每一扇门都是一个选择。