Carl Sagan: We have uncovered wonders undreamt by our
ancestors who first speculated on the nature
of those wondering lights in the sky.
We've crossed the solar system
and sent ships to the stars.
But we continue to search,
we can't help it.
Essential element of the human future
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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