Arthur C. Clarke, the author of Childhood's End, is one of history's premiere science-fiction authors, having penned 2001: A Space Odyssey, The Sentinel and countless others. He was also known for quotes that were quite eerie - and prophetic. Here are four of our favorites.
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"Two possibilities exist: either we are alone in the universe or we are not. Both are equally terrifying."
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"I don't pretend we have all the answers. But the questions are certainly worth thinking about."
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"This is the first age we've paid attention to the future, which is a little ironic since we may not have one."
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"As our own species is in the processing of proving, one cannot have superior science and inferior morals. The combination is unstable and self-destroying."
