Mars is the only place in the solar system where it's possible for life to become multi-planetarian.

Entrepreneurship is like eating glass and walking on hot coals at the same time

You need to be in the position where it is the cost of the fuel that actually matters and not the cost of building the rocket in the first place.

If you think back to the beginning of cell phones, laptops or really any new technology, it's always expensive.

Weighing too much on someone's talent and not someone's personality. I think it matters whether someone has a good heart.

I'm personally a moderate and a registered independent, so I'm not strongly Democratic or strongly Republican.

I think it's important to reason from first principles rather than by analogy. The normal way we conduct our lives is we reason by analogy. [With analogy] we are doing this because it's like something else that was done, or it is like what other people are doing. [With first principles] you boil things down to the most fundamental truths…and then reason up from there.