"I write my songs usually while I'm walking around. Or in a car. Or in a bus, a plane, something like that. I jot down lyrics wherever I am. Usually it's on a vomit bag on an airplane or something. I just look for a pen."

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I want to create the airplane that flies in the rarified atmosphere of Mars. This is what galvanizes a generation to want to become scientists and engineers in the first place, not we need a scientist to develop a plane that's 20 percent more fuel-efficient than the one your parents flew.

— Neil deGrasse Tyson