* The universe is a mathematical creation: Kepler believed that God, being a perfect and rational being, created the universe according to mathematical principles. He saw the universe as a grand and intricate geometric structure, with precise mathematical relationships governing everything from the orbits of planets to the arrangement of atoms.
* Mathematical laws govern celestial motions: Kepler was famous for his three laws of planetary motion, which were based on meticulous observations and calculations. He believed that these laws were not simply descriptions of what was happening, but rather expressions of the underlying mathematical structure of the universe.
* Harmony and beauty in the cosmos: Kepler also saw beauty and harmony in the mathematical relationships he discovered. He believed that the universe was designed with an inherent musicality, with the planets' orbits creating celestial harmonies that could be understood through mathematics.
* Mathematics as a tool for understanding God's creation: Kepler's faith deeply influenced his scientific work. He saw mathematics as a divine language through which humans could access and understand God's creation. He believed that by studying the universe through mathematics, humans could gain a glimpse of the mind of God.
In essence, Kepler saw mathematics as the key to unlocking the secrets of the universe. He believed that understanding the mathematical relationships governing the natural world was not just about gaining knowledge but about connecting with the divine order and beauty inherent in creation.