I don't want to keep playing the same formula over and over again, otherwise you just go insane. I don't want to become stale. I want to be creative.

The problem is that at a lot of big companies, process becomes a substitute for thinking. You're encouraged to behave like a little gear in a complex machine. Frankly, it allows you to keep people who aren't that smart, who aren't that creative.

Businesses that grow by development and improvement do not die. But when a business ceases to be creative, when it believes it has reached perfection and needs to do nothing but produce no improvement, no development, it is done.

You want to look at what other companies are doing. It's very important not to be hermetically sealed. But you don't want to look at it as if, 'OK, we're going to copy that.' You want to look at it and say, 'That's very interesting. What can we be inspired to do as a result of that?' And then put your own unique twist on it.

Once you get into space, you can really unleash a lot of creativity, but the launch itself? I have been through all of the creative ways, and believe me, chemical rockets are the best.

I think frugality drives innovation, just like other constraints do. One of the only ways to get out of a tight box is to invent your way out.