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I would like to fly in space.Absolutely.That would be cool.I used to just do personally risky things， but now I’ve got kids and responsibilities， so I can’t be my own test pilot.That wouldn’t be a good idea.But I definitely want to fly as soon as it’s a sensible thing to do.

研究歷史就是學習時間的語法。

有時候破案的唯一方法就是像罪犯一樣思考。

物理學中的每一個發現都打開了一扇通往新奧秘的門。