Johannes Kepler

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.

Those who study the stars do not seek to please men, but to please God.

The book of nature is written in the language of mathematics.

Astronomy, that microwave of the soul, guides you on a well-lit path between the world of matter and the world of spirit.

My aim is to show that the celestial machine is to be likened not to a divine organism but rather to a clockwork.

Proximus sum egomet mihi.

I used to measure the heavens, now I measure the shadows of the earth. The mind belongs to Heaven, it's the body's shadow on earth.

The square of the period of revolution of any planet is proportional to the cube of the semi-major axis of its orbit.

Nature takes on the same shapes in all places.

We do not ask for what useful purpose the birds do sing, for song is their pleasure since they were created for singing.

To know the works of God is the chief aim of science.

The heavens laugh at your folly.

In the course of my work on the heavens, I have discovered a new star.

The soul of the world is the same everywhere.

Mathematics is the language with which God has written the universe.

I demonstrate by the works of my hands that which others have only demonstrated with words.

The wish to investigate truth is the mainspring of all human activity.

God ever geometrizes.

The orbits of the planets are ellipses, not circles.

Harmony is the elevation of the soul.