Aristotle, The Nicomachean Ethics of Aristotle, trans. Robert Williams (1879), book 6, chapter 2, p. 154. See also R. W. Browne's translation (1850), Book VI, Chapter II: Therefore Agathon rightly says: "Of this alone even God is deprived, the power of making things that are past never to have been". Same idea in John Milton, Paradise Lost, 9. 926. Pindar, Olympia. 2. 17. Pliny the Elder, Historia Naturalis, 2. 5. 10. Aristotle attributed these words to Agathon, an Athenian tragic poet who livedhttps://en.wikiquote.org/wiki/Past