Nicolaus Copernicus — "I have been so long in preparing this work that I have almost despaired of publi…"
I have been so long in preparing this work that I have almost despaired of publishing it.
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More from Nicolaus Copernicus
"For it is not necessary that hypotheses should be true, or even probable; it is enough if they provide a calculus which agrees with the observations."
"For it is the duty of an astronomer to gather by careful and skilled observation the history of the celestial movements, and then to investigate their causes or hypotheses about them, and then to pred…"
"For the Earth, which is a planet, must therefore move in a circle around the Sun."
"The earth has a spherical shape, for it is bounded on all sides by the circumference of a circle."
"The earth also is spherical, since it presses upon its center from every direction."