Paragraph 30, Zeile 30 Philosophia: Orator Ad M. Brutum von Cicero Cicero Paragraph 5, Zeile 31 Letters To Atticus: Ad Atticum XII von Cicero Cicero Paragraph 12, Zeile 31 Ab Urbe Condita Libri: VII von Livius Livius Paragraph 9, Zeile 19