“There are a lot of negative things in the world, there are a lot of terrible things happening all over the world, all the time. There are lots of problems that need to get solved; there’s lots of things that are miserable and kind of get you down.
“But life cannot just be about solving one miserable problem after another. That can’t be the only thing. There need to be things that inspire you, that make you glad to wake up in the morning and be part of humanity. That’s why we did this.
“There’s a guy called [Konstantin Tsiolkovsky], one of the early Russian rocket scientists. [He had] a great saying, “Earth is the cradle of humanity, you cannot stay in the cradle forever. It is time to go forth, become a star-faring civilization, be out there among the stars, expand the scope and scale of human consciousness.
“I find that incredibly exciting. That makes me glad to be alive. I hope you feel the same way.”