Eyesight Should Learn From Reason.

[god] Is The Kind Creator Who Brought Forth Nature Out Of Nothing.

I Myself, A Professional Mathematician, On Re-reading My Own Work Find It Strains My Mental Powers To Recall To Mind From The Figures The Meanings Of The Demonstrations, Meanings Which I Myself Originally Put Into The Figures And The Text From My Mind. But When I Attempt To Remedy The Obscurity Of The Material By Putting In Extra Words, I See Myself Falling Into The Opposite Fault Of Becoming Chatty In Something Mathematical.

Astronomy Would Not Provide Me With Bread If Men Did Not Entertain Hopes Of Reading The Future In The Heavens.

Repudiating The Sensible World, Which He Neither Sees Himself Nor Believes From Those Who Have, The Peripatetic Joins Combat By Childish Quibbling In A World On Paper, And Denies The Sun Shines Because He Himself Is Blind.

It Is A Right, Yes A Duty, To Search In Cautious Manner For The Numbers, Sizes, And Weights, The Norms For Everything [god] Has Created. For He Himself Has Let Man Take Part In The Knowledge Of These Things ... For These Secrets Are Not Of The Kind Whose Research Should Be Forbidden; Rather They Are Set Before Our Eyes Like A Mirror So That By Examining Them We Observe To Some Extent The Goodness And Wisdom Of The Creator.