Physics is a good framework for thinking. ... Boil things down to their fundamental truths and reason up from there.
My motivation for all my companies has been to be involved in something that I thought would have a significant impact on the world.
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.
Well, my motivation behind Tesla is really to do as much good as possible for the environment and the electric-vehicle revolution. I think there is still a lot of work to do and if we were to sell to a big company, I'm not sure it would progress at the same pace.
Every mode of transport that we use - whether it's planes, trains, automobiles, bikes, horses - is reusable, but not rockets. So we must solve this problem in order to become a space-faring civilization.
