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当你怀疑自己是否能飞的那一刻,你就永远失去了飞翔的能力。
The moment you doubt whether you can fly, you cease for ever to be able to do it.
做出伟大工作的唯一方法就是热爱你所做的事情。
We must listen to the science—ignoring it will only lead to irreversible damage.
The only limit to our realization of tomorrow will be our doubts of today.