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The key to success in research is to focus on fundamental problems that have long-term impact.

環(huán)境對不同觀察者會顯得不同，這取決于他們準備看到什么。

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."

"I think children are naturally curious and open to new ideas, and that's something I try to capture in my books."