Praeparatio Evangelica (The Preparation of the Gospel)

'THE followers of Thales say the Earth is the centre.

'Xenophanes: the Earth first, for its roots reach into infinity.

'Philolaus the Pythagorean: first, fire in the centre; for this is the hearth of the universe: second, the antipodal Earth, and third, the Earth which we inhabit, opposite to the antipodal both in situation and revolution; in consequence of which the inhabitants of the antipodal Earth are not seen by those in this Earth.

'Parmenides was the first to mark off the inhabited parts of the Earth under the two tropical zones.'