If humanity doesn't land on Mars in my lifetime, I would be very disappointed.

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

I would like to die on Mars. Just not on impact.

The pace of progress on Mars depends upon the pace of progress of SpaceX.

My vision is for a fully reusable rocket transport system between Earth and Mars that is able to re-fuel on Mars - this is very important - so you don't have to carry the return fuel when you go there.

The revolutionary breakthrough will come with rockets that are fully and rapidly reusable. We will never conquer Mars unless we do that. It'll be too expensive. The American colonies would never have been pioneered if the ships that crossed the ocean hadn't been reusable.