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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.

我是個完美主義者，我承認這一點。我總是在努力改進。

"We are all a little broken, but that's how the light gets in."

Sometimes you don't need a goal in life, you don't need to know the big picture. You just need to know what you're going to do next!

我認為戰勝恐懼的唯一方法就是告訴它滾開。

Every mathematical problem is a puzzle waiting to be solved, and every solution is a step closer to understanding the fabric of reality.

生活只能向后理解；但它必須向前生活。