Eyesight Should Learn From Reason.

A Most Unfailing Experience... Of The Excitement Of Sublunary (that Is, Human) Natures By The Conjunctions And Aspects Of The Planets Has Instructed And Compelled My Unwilling Belief.

My Aim Is To Say That The Machinery Of The Heavens Is Not Like A Divine Animal But Like A Clock (and Anyone Who Believes A Clock Has A Soul Gives The Work The Honour Due To Its Maker) And That In It Almost All The Variety Of Motions Is From One Very Simple Magnetic Force Acting On Bodies, As In The Clock All Motions Are From A Very Simple Weight.

If This [the Mysterium Cosmographicum] Is Published, Others Will Perhaps Make Discoveries I Might Have Reserved For Myself. But We Are All Ephemeral Creatures (and None More So Than I). I Have, Therefore, For The Glory Of God, Who Wants To Be Recognized From The Book Of Nature, That These Things May Be Published As Quickly As Possible. The More Others Build On My Work The Happier I Shall Be.

We Do Not Ask For What Useful Purpose The Birds Do Sing, For Song Is Their Pleasure Since They Were Created For Singing. Similarly, We Ought Not To Ask Why The Human Mind Troubles To Fathom The Secrets Of The Heavens.

Discover The Force Of The Skies O Men: Once Recognised It Can Be Put To Use.