"We regard it as a certainty that the earth, enclosed between poles, is bounded by a spherical surface."

Certainty, Earth

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"We regard it as a certainty that the earth, enclosed between poles, is bounded by a spherical surface."

Exlpore more Certainty quotes

"A bird in hand is a certainty. But a bird in the bush may sing."

Bret Harte, American Author

Certainty, May

"Could we have prevented in 100% certainty? I don't think anything is that certain. However, we would have had a very, very good chance for preventing it."

Sibel Edmonds, American Public Servant

Certainty, Chance

"When we deal with questions relating to principles of law and their applications, we do not suddenly rise into a stratosphere of icy certainty."

Charles Evans Hughes, American Judge

Certainty, Law, Principles, Questions

"The minute one utters a certainty, the opposite comes to mind."

May Sarton, American Poet

Certainty, Mind

"Inquiry is fatal to certainty."

Will Durant, American Historian

Certainty,

"Certitude is not the test of certainty. We have been cocksure of many things that were not so."

Oliver Wendell Holmes, American Writer

Certainty, Oliver Holmes, Jr.

"One must verify or expel his doubts, and convert them into the certainty of Yes or NO."

Thomas Carlyle, Scottish Philosopher

Certainty,

"I really think that living is the process of going from complete certainty to complete ignorance."

Richard Dreyfuss, American Actor

Certainty, Ignorance, Living

"It is far better to foresee even without certainty than not to foresee at all."

Henri Poincare, French Mathematician

Certainty,

"Only a very bad theologian would confuse the certainty that follows revelation with the truths that are revealed. They are entirely different things."

Denis Diderot, French Editor

Certainty,

Explore more quotes by Nicolaus Copernicus

"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."

Truth

"For it is the duty of an astronomer to compose the history of the celestial motions through careful and expert study."

History

"Moreover, since the sun remains stationary, whatever appears as a motion of the sun is really due rather to the motion of the earth."

Earth

"First of all, we must note that the universe is spherical."

First

"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."

Men

"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."

Father

"At rest, however, in the middle of everything is the sun."

Rest

"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."

Work

"More stars in the north are seen not to set, while in the south certain stars are no longer seen to rise."

Stars

"Accordingly, since nothing prevents the earth from moving, I suggest that we should now consider also whether several motions suit it, so that it can be regarded as one of the planets. For, it is not the center of all the revolutions."

Earth