Complexity is easy; simplicity is hard.

历史不会长期将自由的维护托付给软弱或胆怯的人。

The worst blindness is the blindness of those who do not want to see.

The true artist will let his wife starve, his children go barefoot, his mother drudge for his living at seventy, sooner than work at anything but his art.

我想在太空飞行，绝对的！那会是相当酷。我自己过去经常做一些冒险的事情，但是我现在有了孩子和家庭责任，因此我没法拿自己去冒风险了。那样做不明智。但是只要太空飞行变得切实可行，我一定会去尝试。