The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
世界是一台机器，而我们是它的故障零件。
在森林保护工作中，必须倾听土著社区的声音。
A wealth of information creates a poverty of attention.
The truth is rarely pure and never simple.