Paragraph 24, Zeile 437 Epistulae Morales Ad Lucilium: Epistulae Morales, Liber XX von Seneca
Abschnitt CXXI. Seneca Lvcilio Suo Salutem., Paragraph 6, Zeile 6 Quaestiones Naturales II von Seneca
Paragraph 78, Zeile 78 Quaestiones Naturales VII von Seneca
Paragraph 82, Zeile 82