Johannes Kepler

I much prefer the sharpest criticism of a single intelligent man to the thoughtless approval of the masses.

The ways by which men arrive at knowledge are manifold.

I have attested it by my own discovery that the orbit of the planet, Mars, is not a circle but an ellipse.

I have no objection to anyone's using the word 'astrology' for the sake of convenience, provided that he understands what he is doing.

My aim is to show that the heavenly machine is not a kind of divine, live being, but a kind of clockwork.

Geometry, which is co-eternal with God and, shining in the divine mind, provided God with a model for the creation of the world.

I am much occupied with the investigation of the causes of things.

The Earth is a living creature, and its soul is the sun.

I have discovered the true causes of the motions of the planets.

The more we understand the universe, the more we understand God.

Truth is the daughter of time, and I feel no shame in being her midwife.

I am writing a book on the harmony of the world.

I have made a discovery that will change the face of astronomy.

The world is a machine, and the planets are its wheels.

I have devoted my life to the study of the heavens.

The universe is a symphony, and the planets are its notes.

I have found the music of the spheres.

The laws of nature are the thoughts of God.

I have made a great discovery, and I am not afraid to publish it.

The heavens declare the glory of God.