I just want to retire before I go senile because if I don't retire before I go senile, then I'll do more damage than good at that point.

If you had to buy a new plane every time you flew somewhere, it would be incredibly expensive.

I've always wanted to be part of something that would radically change the world. . . . People forget the power of inspiration. All of humanity went to the moon with the Apollo missions. The issue was cost. There was no chance to build a base and create frequent flights. That's the problem I would like to solve.

I could either watch it happen or be a part of it.

I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

My family fears that the Russians will assassinate me.

Obviously Tesla is about helping solve the consumption of energy in a sustainable manner but you need the production of energy in a sustainable manner.