Early Greek Philosophy by John Burnet, 3rd edition (1920) (页面存档备份,存于互联网档案馆): "The oldest reference to a poem Περὶ φύσεως is in the Geneva scholium on Iliad xxi. 196 (quoting fr. 30), and this goes back to [[马鲁斯的克拉特斯|]]. We must remember that such titles are of later date, and Xenophanes had been given a place among philosophers long before the time of rates. All we can say, therefore, is that the Pergamene librarians gave the title Περὶ φύσεως to some poem of Xenophanes."
"Xenophanes of Colophon" (页面存档备份,存于互联网档案馆) The Oxford Dictionary of Philosophy. Simon Blackburn. Oxford University Press, 2008. Oxford Reference Online. Oxford University Press. 12 October 2011.
"Xenophanes of Colophon" (页面存档备份,存于互联网档案馆) The Oxford Dictionary of Philosophy. Simon Blackburn. Oxford University Press, 2008. Oxford Reference Online. Oxford University Press. 12 October 2011.
Early Greek Philosophy by John Burnet, 3rd edition (1920) (页面存档备份,存于互联网档案馆): "The oldest reference to a poem Περὶ φύσεως is in the Geneva scholium on Iliad xxi. 196 (quoting fr. 30), and this goes back to [[马鲁斯的克拉特斯|]]. We must remember that such titles are of later date, and Xenophanes had been given a place among philosophers long before the time of rates. All we can say, therefore, is that the Pergamene librarians gave the title Περὶ φύσεως to some poem of Xenophanes."