Geometry has two great treasures; one is the Theorem of Pythagoras; the other, the division of a line into extreme and mean ratio. The first we may compare to a measure of gold; the second we may name a precious… — Johannes Kepler Copy Share Image
If the moon and earth were not retained in their orbits by their animal force or some other equivalent, the earth would mount to… — Johannes Kepler Copy Share
If God himself has waited six thousand years for someone to contemplate his works, my book can wait for a hundred. — Johannes Kepler Copy Share
...Those laws are within the grasp of the human mind. God wanted us to recognize them by creating us after his own image so… — Johannes Kepler Copy Share
Just as the eye was made to see colours, and the ear to hear sounds, so the human mind was made to understand, not… — Johannes Kepler Copy Share
I had the intention of becoming a theologian...but now I see how God is, by my endeavors, also glorified in astronomy, for 'the heavens… — Johannes Kepler Copy Share
[Quantity is the fundamental feature of things,] the 'primarium accidens substantiae,' ...prior to the other categories. — Johannes Kepler Copy Share
Repudiating the sensible world, which he neither sees himself nor believes from those who have, the Peripatetic joins combat by childish quibbling in a… — Johannes Kepler Copy Share
If the earth were not round, heavy bodies would not tend from every side in a straight line towards the center of the earth,… — Johannes Kepler Copy Share
Wherever there are qualities there are likewise quantities, but not always vice versa. — Johannes Kepler Copy Share
The soul of the newly born baby is marked for life by the pattern of the stars at the moment it comes into the… — Johannes Kepler Copy Share
So, Fabricius, I already have this: that the most true path of the planet [Mars] is an ellipse, which Dürer also calls an oval,… — Johannes Kepler Copy Share
Ships and sails proper for the heavenly air should be fashioned. Then there will also be people, who do not shrink from the dreary… — Johannes Kepler Copy Share
Gravity is a mutual affection between cognate bodies towards union or conjunction (similar in kind to the magnetic virtue), so that the earth attracts… — Johannes Kepler Copy Share
