The radius vector describes equal areas in equal times.

Geometry is the archetype of the beauty of the world.

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

Some of what these pamphlets [of astrological forecasts] say will turn out to be true, but most of it time and experience will expose as empty and worthless. The latter part will be forgotten literally: written on the winds while the former will be carefully entered in people's memories, as is usual with the crowd.

My greatest desire is that I may perceive the God whom I find everywhere in the external world, in like manner also within and inside myself.

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

Why waste words? Geometry existed before the Creation, is co-eternal with the mind of God, is God himself (what exists in God that is not God himself?): geometry provided God with a model for the Creation and was implanted into man, together with God's own likeness - and not merely conveyed to his mind through the eyes.