Once miracles are admitted, every scientific explanation is out of the question.

I am a Lutheran astrologer, I throw away the nonsense and keep the hard kernel.

Nature uses as little as possible of anything.

I believe only and alone in the service of Jesus Christ. In him are all refuge and solace.

When ships to sail the void between the stars have been built, there will step forth men to sail these ships.

Wherever there are qualities there are likewise quantities, but not always vice versa.

If the earth should cease to attract its waters to itself all the waters of the sea would be raised and would flow to the body of the moon.

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

God is the kind Creator who brought forth nature out of nothing.

O telescope, an instrument of much knowledge, more precious than any sceptre!

Geometry is the archetype of the beauty of the world.

Without proper experiments, I conclude nothing.

Nature loves simplicity and unity.

Where there is matter, there is geometry.

Why are things as they are and not otherwise?

Science is the process of thinking God's thoughts after Him.

The radius vector describes equal areas in equal times.

Planets move in ellipses with the Sun at one focus.

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