At Rest, However, In The Middle Of

Yet The Widespread Planetary Theories, Advanced By Ptolemy And Most Other Astronomers, Although Consistent With The Numerical Data, Seemed Likewise To Present No Small Difficulty. For These Theories Were Not Adequate Unless They Also Conceived Certain Equalizing Circles, Which Made The Planet Appear To Move At All Times With Uniform Velocity Neither On Its Deferent Sphere Nor About Its Own Epicycle's Center.

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.

Mathemata Mathematicis Scribuntur Mathematics Is Written For Mathematicians De Revolutionibus

Pouring Forth Its Seas Everywhere, Then, The Ocean Envelops The Earth And Fills Its Deeper Chasms.

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."