Nations Are Not Ruined By One Act

In So Many And Such Important Ways, Then, Do The Planets Bear Witness To The Earth's Mobility.

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.

The Two Revolutions, I Mean The Annual Revolutions Of The Declination And Of The Centre Of The Earth, Are Not Completely Equal; That Is The Return Of The Declination To Its Original Value Is Slightly Ahead Of The Period Of The Centre. Hence It Necessarily Follows That The Equinoxes And Solstices Seem To Anticipate Their Timing, Not Because The Sphere Of The Fixed Stars Moves To The East, But Rather The Equatorial Circle Moves To The West, Being At An Angle To The Plane Of The Ecliptic In Proportion To The Declination Of The Axis Of The Terrestrial Globe.

Finally We Shall Place The Sun Himself At The Center Of The Universe.

Mathematics Is Written For Mathematicians.