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"We regard it as a certainty that the earth, enclosed between poles, is bounded by a spherical surface."
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"In this world nothing can be said to be certain, except death and taxes."

"When I tested for Billy Budd, I had that kind of confidence that comes with the certainty that you're not going to get something. I was very rough around the edges."

"Many slaves on this continent are oppressed, and their cries have reached the ears of the Most High. Such are the purity and certainty of his judgments, that he cannot be partial in our favor."

"We can say with certainty - or 90% probability - that the new industries that are about to be born will have nothing to do with information."

"The demand for certainty is one which is natural to man, but is nevertheless an intellectual vice."

"The quest for certainty blocks the search for meaning. Uncertainty is the very condition to impel man to unfold his powers."
Explore more quotes by Nicolaus Copernicus

"Not a few other very eminent and scholarly men made the same request, urging that I should no longer through fear refuse to give out my work for the common benefit of students of Mathematics."

"I can easily conceive, most Holy Father, that as soon as some people learn that in this book which I have written concerning the revolutions of the heavenly bodies, I ascribe certain motions to the Earth, they will cry out at once that I and my theory should be rejected."

"Therefore, when I considered this carefully, the contempt which I had to fear because of the novelty and apparent absurdity of my view, nearly induced me to abandon utterly the work I had begun."

"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."

"The earth together with its surrounding waters must in fact have such a shape as its shadow reveals, for it eclipses the moon with the arc of a perfect circle."

"Therefore, in the course of the work I have followed this plan: I describe in the first book all the positions of the orbits together with the movements which I ascribe to the Earth, in order that this book might contain, as it were, the general scheme of the universe."
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