Therefore I Would Not Have It Unknown

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.

Among The Authorities It Is Generally Agreed That The Earth Is At Rest In The Middle Of The Universe, And They Regard It As Inconceivable And Even Ridiculous To Hold The Opposite Opinion. However, If We Consider It More Closely The Question Will Be Seen To Be Still Unsettled, And So Decidedly Not To Be Despised. For Every Apparent Change In Respect Of Position Is Due To Motion Of The Object Observed, Or Of The Observer, Or Indeed To An Unequal Change Of Both.

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.

For What Could Be More Beautiful Than The Heavens Which Contain All Beautiful Things.

Those Things Which I Am Saying Now May Be Obscure, Yet They Will Be Made Clearer In Their Proper Place.