Paragraph 16, Zeile 54 Letters To Friends: Ad Familiares IV von Cicero Cicero Paragraph 6, Zeile 9 Epistulae Morales Ad Lucilium: Epistulae Morales, Liber VI von Seneca Seneca Abschnitt LIV. Seneca Lucilio Suo Salutem, Paragraph 2, Zeile 4