From +Neil Degrasse Tyson
I STUDY THE universe for a living. I've served on two presidential commissions that studied space exploration, but at heart I'm an academic. Being an academic means I don't wield power over person, place, or thing. I don't command armies; I don't lead labor unions. All I have is the power of thought.
And here's my thought: As a nation, we need to keep reaching for the stars, to push back our boundaries and stake out new frontiers.