The chief aim of all investigations of the external world should be to discover the rational order and harmony which has been imposed on it by God and which He revealed to us in the language of mathematics.

Geometry, which before the origin of things was coeternal with the divine mind and is God himself (for what could there be in God which would not be God himself?), supplied God with patterns for the creation of the world, and passed over to Man along with the image of God; and was not in fact taken in through the eyes.

I believe the geometric proportion served the creator as an idea when He introduced the continuous generation of similar objects from similar objects.

When things are in order, if the cause of the orderliness cannot be deduced from the motion of the elements or from the composition of matter, it is quite possibly a cause possessing a mind.

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

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

Planets move in ellipses with the Sun at one focus.