Original: Xenophanes is quoted, memorably, in Clement of Alexandria, Clement, Miscellanies V. 110 and VII .22.
Simplified: Sextus Empiricus, Against the Mathematicians, I. 289, and IX .192 f. Xenophanes is quoted, memorably, in Clement of Alexandria, Clement, Miscellanies V. 110 and VII .22.