Carl Sagan: We have uncovered wonders undreamt by our ...
ancestors who first speculated on the nature ...
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of those wondering lights in the night sky.
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We've crossed the solar system ...
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and sent ships to the stars.
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But we continue to search, ...
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we can't help it.
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Essential element of the human future ...
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lies far beyond the Earth.
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If we crave some cosmic purpose, ...
then let us find ourselves a worthy goal.
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