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.

The rule of law requires that laws be general, public, prospective, clear, and consistent.

快速阅读的关键不是读得更快，而是理解得更快。

The rocks we extract tell Earth's story; we're just temporary custodians of this legacy.