If the size of the sun were less than that of the earth, every unpermissible insufferable thing I have mentioned, and more besides, would occur, because the shadow of the earth would be constantly increasing in size and width out from the earth to the sphere of the constellations, and it would darken the greater part of them, and an eclipse of the planets would occur every month, and an eclipse of the moon, as I mentioned, would be in progress during the night until morning. Since, then, we have never seen this, and never heard of it, and never found it written, the size of the sun cannot be less than that of the earth. This figure below explains this statement I make.