Nature uses as little as possible of anything.

Eyesight should learn from reason.

Astronomy would not provide me with bread if men did not entertain hopes of reading the future in the heavens.

Ships and sails proper for the heavenly air should be fashioned. Then there will also be people, who do not shrink from the dreary vastness of space.

The Earth is round, and is inhabited on all sides, is insignificantly small, and is borne through the stars.

Thus God himself was too kind to remain idle and began to play the game of signatures signing his likeness unto the world: therefore I chance to think that all nature and the graceful sky are symbolized in the art of Geometria.

The sun alone appears, by virtue of his dignity and power, suited for this motive duty (of moving the planets) and worthy to become the home of God himself.