无论大自然为人类准备了什么，无论多么不愉快，人类都必须接受，因为无知从来都不比知识更好。
Whatever Nature has in store for mankind, unpleasant as it may be, men must accept, for ignorance is never better than knowledge.
In the end, it's about the work. It's not about the fame or the money.
The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!
预测往往反映的是预测者当前的知识和偏见，而非真实的未来。
Innovation is driven by the refusal to accept limitations.