人类的愚蠢在于，总是把简单的事情复杂化。

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.

我不是沉默，我是尖叫。

如果你不前进，你就在落后。

安全不是优先事项，而是价值观。优先事项会变，价值观不会。