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建筑的特性取決于它的使用方式，而不是它的外觀。

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.

Every mathematical problem has a solution; it's just a matter of finding the right perspective.

領導力不在于命令，而在于激勵他人看到愿景。

行為法則與物理學法則一樣精確。

The human heart is the most deceitful of all things, and desperately wicked. Who really knows how bad it is?