When, therefore, I had long considered this uncertainty of traditional mathematics, it began to weary me that no more definite explanation of the movement of the world-machine established in our behalf by the best and most systematic builder of all, existed among the philosophers who had studied so exactly in other respects the minutest details in regard to the sphere.
Nicolaus CopernicusMore stars in the north are seen not to set, while in the south certain stars are no longer seen to rise.
Nicolaus CopernicusThe massive bulk of the earth does indeed shrink to insignificance in comparison with the size of the heavens.
Nicolaus CopernicusI can easily conceive, most Holy Father, that as soon as some people learn that in this book which I have written concerning the revolutions of the heavenly bodies, I ascribe certain motions to the Earth, they will cry out at once that I and my theory should be rejected.
Nicolaus Copernicus