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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.
我们今天种植的每一棵树都是对明天清洁空气、稳定气候和繁荣生态系统的投资。
Education is not the filling of a pail, but the lighting of a fire.
The writer must be a defender of freedom, even at the cost of his own comfort.