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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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Nicolaus Copernicus
Age: 70 †
Born: 1473
Born: February 19
Died: 1543
Died: May 24
Astronomer
Diplomat
Economist
Jurist
Legal Scholar
Mathematician
Philosopher
Physician
Physicist
Translator
Thorn
MikoĊ‚aj Kopernik
Nikolaus Kopernikus
Copernicus
Niklas Koppernigk
Earth
Spherical
Bounded
Enclosed
Poles
Certainty
Surface
Regard

More quotes by Nicolaus Copernicus

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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.
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First of all, we must note that the universe is spherical.
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To know the mighty works of God, to comprehend His wisdom and majesty and power to appreciate, in degree, the wonderful workings of His laws, surely all this must be a pleasing and acceptable mode of worship to the Most High, to whom ignorance cannot be more grateful than knowledge.
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To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.
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If there be some who, though ignorant of all mathematics . . . dare to reprove this work, because of some passage of Scripture, which they have miserably warped to their purpose, I regard them not, and even despise their rash judgement.
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Those things which I am saying now may be obscure, yet they will be made clearer in their proper place.
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Nations are not ruined by one act of violence, but gradually and in an almost imperceptible manner by the depreciation of their circulating currency, through its excessive quantity.
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Finally we shall place the Sun himself at the center of the Universe. All this is suggested by the system of procession of events and the harmony of the whole Universe, if only we face the facts, as they say, with eyes wide open.
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We are taught all this [the motion of the earth on its axis and around the sun] by the order of succession, in which those phenomena (various planetary happenings) follow each other, and by the harmony of the world, if we will only, as the saying goes, look at the matter with both eyes.
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At rest, however, in the middle of everything is the sun.
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Mathematics is written for mathematicians.
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If there should chance to be any mathematicians who, ignorant in mathematics yet pretending to skill in that science, should dare, upon the authority of some passage of Scripture wrested to their purpose, to condemn and censure my hypothesis, I value them not, and scorn their inconsiderate judgement. De Revolutionibus Coelestibus
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For when a ship is floating calmly along, the sailors see its motion mirrored in everything outside, while on the other hand they suppose that they are stationary, together with everything on board. In the same way, the motion of the earth can unquestionably produce the impression that the entire universe is rotating.
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I shall now recall to mind that the motion of the heavenly bodies is circular, since the motion appropriate to a sphere is rotation in a circle.
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Therefore, having obtained the opportunity from these sources, I too began to consider the mobility of the earth.
Nicolaus Copernicus
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Astronomy is written for astronomers
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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.
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Finally we shall place the Sun himself at the center of the Universe.
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In first place we must observe that the universe is spherical. This is either because that figure is the most perfect, as not being articulated, but whole and complete in itself or because it is the most capacious and therefore best suited for that which is to contain and preserve all things.
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Pouring forth its seas everywhere, then, the ocean envelops the earth and fills its deeper chasms.
Nicolaus Copernicus