Animal Quote by Johannes Kepler
“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.”
![“[Quantity is the fundamental feature of things,] the 'primarium accidens substantiae,' ...prior to the other categories.” quote by Johannes Kepler](https://sms4smile.com/quotes/img-quotes/4a1/johannes-kepler-4278_categories_quantity-is-the-fundamental-feature-of-t_150994.jpg)
![“So, Fabricius, I already have this: that the most true path of the planet [Mars] is an ellipse, which Dürer also calls an oval, or certainly so close to an ellipse that the difference is insensible.” quote by Johannes Kepler](https://sms4smile.com/quotes/img-quotes/a6b/johannes-kepler-4278_differences_so-fabricius-i-already-have-this-that-th_311054.jpg)
