We Regard It As A

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.

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

Not Only The Phenomena Of The Others Followed From This, But Also It So Bound Together Both The Order And Magnitude Of All The Planets And The Spheres And The Heaven Itself, That In No Single Part Could One Thing Be Altered Without Confusion Among The Other Parts And In All The Universe.

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

When, Therefore, I Had Long Considered This Uncertainty Of Traditional Mathematics, It Began To Weary Me That No More Definite Explanation Of The Movement Of The World-machine Established In Our Behalf By The Best And Most Systematic Builder Of All, Existed Among The Philosophers Who Had Studied So Exactly In Other Respects The Minutest Details In Regard To The Sphere.