“So far as hypotheses are concerned, let no one expect anything certain from astronomy, which cannot furnish it, lest he accept as the truth ideas conceived for another purpose, and depart from this study a greater fool than when he entered it.”
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We regard it as a certainty that the earth, enclosed between poles, is bounded by a spherical surface.
Nicolaus Copernicus 
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So, influenced by these advisors and this hope, I have at length allowed my friends to publish the work, as they had long besought me to do.
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Pouring forth its seas everywhere, then, the ocean envelops the earth and fills its deeper chasms.
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