世界是一个危险的地方，不是因为那些作恶的人，而是因为那些旁观而不作为的人。

If you don't go through the tough times, you don't get to the good times.

We don't inherit the earth from our ancestors; we borrow it from our children—this is especially true in forestry.

The greatest rewards come from working on something that nobody else is working on.

意识是宇宙的基本特征，就像空间和时间一样。