"If the rules are such that you can't make progress, then you have to fight the rules."

"I think it's important to have a grand vision."

"When someone has a breakthrough innovation, it is rarely one little thing. It's usually a whole bunch of things."

"It is important to view knowledge as sort of a semantic tree — make sure you understand the fundamental principles."

"If humanity is to become multi-planetary, the fundamental breakthrough that needs to occur in rocketry is a rapidly and completely reusable rocket."

"An asteroid or a supervolcano could certainly destroy us... we also face risks the dinosaurs never saw."

"Talent is extremely important... there's a multiplier from how those players work together."

"Organize: Collective action brings lasting change."

"For a successful revolution it is not enough that there is discontent."

"A safe army is better than a safe border."

"When it is obvious that the goals cannot be reached, don't adjust the goals, adjust the action steps."