"The world is a book, and those who do not travel read only one page."

"The universe is an image of God."

"I was measuring the heavens, now I must measure the shadows of the Earth. Though my soul was from the heavens, the shadow of my body lies here."

"Mathematics is the alphabet with which God has written the universe."

"The works of God are beautiful and great; let us, therefore, with all our might, strive to know them."