Astronomy Is Written For Astronomers

In The Midst Of All Dwells The Sun.

First Of All, We Must Note That The Universe Is Spherical.

Mathematics Is Written For Mathematicians.

We Regard It As A Certainty That The Earth, Enclosed Between Poles, Is Bounded By A Spherical Surface.

Hence I Feel No Shame In Asserting That This Whole Region Engirdled By The Moon, And The Center Of The Earth, Traverse This Grand Circle Amid The Rest Of The Planets In An Annual Revolution Around The Sun. Near The Sun Is The Center Of The Universe. Moreover, Since The Sun Remains Stationary, Whatever Appears As A Motion Of The Sun Is Really Due Rather To The Motion Of The Earth.