"By preventing dangerous asteroid strikes, we can save millions of people, or even our entire species. And, as human beings, we can take responsibility for preserving this amazing evolutionary experiment of which we and all life on Earth are a part."

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When you look at Earth from that one picture, the one from space, it's really a rather attractive thing. I have nothing against the planet per se. I root for the big comet or asteroid as a way of cleansing the planet. The comet or asteroid 65 million years ago is probably what gave us our opening to replace the reptiles. The greatest entertainment I have in my life is chronicling internally, not necessarily for the public, the slow dissolution of order.

— George Carlin