“They have an inferior lunar mission mode per se…but if they make the heavy-lift vehicle, they make everything we need them to make. That's the most important thing the lunar program can give the Mars program.”
“The testing of life support systems will certainly be useful, ... But on the psychological side, the real human factor is not whether people go crazy living in a tin: they don't. It's whether they can put up with the overwork once they arrive on Mars and start a rigorous programme of field exploration.”
“if someone comes in (as US president in 2009) and has no interest, he can just say, 'thank you for rationalising the space station' and leave it at that.”
