An asteroid or a supervolcano could certainly destroy us, but we also face risks the dinosaurs never saw: An engineered virus, nuclear war, inadvertent creation of a micro black hole, or some as-yet-unknown technology could spell the end of us.

I came to the conclusion that we should aspire to increase the scope and scale of human consciousness in order to better understand what questions to ask. Really, the only thing that makes sense is to strive for greater collective enlightenment.

Life is too short for long-term grudges.

Yeah, well I think anyone who likes fast cars will love the Tesla. And it has fantastic handling by the way. I mean this car will crush a Porsche on the track, just crush it. So if you like fast cars, you'll love this car. And then oh, by the way, it happens to be electric and it's twice the efficiency of a Prius.

I wouldn't say I have a lack of fear. In fact, I'd like my fear emotion to be less because it's very distracting and fries my nervous system.

The extension of life beyond Earth is the most important thing we can do as a species.

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