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 to be obeyed.
"Experience is simply the name we give our mistakes."
Our descendants will achieve things that will amaze us, yet a portion of what they will create could have been made with today’s materials and tools if we had had the imagination. Think bigger.
The most dangerous chemical in any plant isn't the one in the vats - it's complacency.
写作就是把文字刻在时间的肉体上。