Funded by the government just means funded by the people. Government, by the way, has no money. It only takes money from the people. Sometimes people forget that that's really what occurs.

I think that's an important thing to do, to really pay attention to negative feedback, and solicit it, particularly from friends. This may sound like simple advice, but hardly anyone does that, and it's incredibly helpful.

You should be innovating so fast that you're invalidating your prior patents.

It's really incumbent upon us as life's agents to extend life to another planet. I think that being a multi-planet species will significantly increase the richness and scope of the human experience.

I feel very strongly that SpaceX would not have been able to get started, nor would we have made the progress that we have, without the help of NASA.

Many things are improbable, only a few are impossible.

Land on Mars, a round-trip ticket - half a million dollars. It can be done.