Eyesight Should Learn From Reason.

I Measured The Skies, Now The Shadows I Measure, Sky-bound Was The Mind, Earth-bound The Body Rests. [kepler's Epitaph]

Where There Is Matter, There Is Geometry.

The Diversity Of The Phenomena Of Nature Is So Great, And The Treasures Hidden In The Heavens So Rich, Precisely In Order That The Human Mind Shall Never Be Lacking In Fresh Nourishment.

If The Moon And Earth Were Not Retained In Their Orbits By Their Animal Force Or Some Other Equivalent, The Earth Would Mount To The Moon By A Fifty-fourth Part Of Their Distance, And The Moon Fall Towards The Earth Through The Other Fifty-three Parts, And They Would There Meet, Assuming, However, That The Substance Of Both Is Of The Same Density.

Planets Move In Ellipses With The Sun At One Focus.