Playboy interview (1996)
Kontext: If NASA's budgeters could be convinced that there are riches on Mars, we would explode overnight to stand on the rim of the Martian abyss. We need space for reasons we have not as yet discovered, and I don't mean Tupperware. … NASA feels it has to justify everything it does in practical terms.
And Tupperware was one of the many practical products that came out of space travel. NASA feels it has got to flimflam you to get you to spend money on space. That's B. S. We don't need that. Space travel is life-enhancing, and anything that's life-enhancing is worth doing. It makes you want to live forever.