"If we are going to accept chance utterances of this kind as omens, we had better look out when we stumble, or break a shoe-string, or sneeze!" Cicero De Divinatione 2.84: Loeb translation (1923) online at Bill Thayer's site [1]. In Pliny, Historia Naturalis, 15.83: ex hoc genere sunt, ut diximus, cottana et caricae quaeque conscendendi navem adversus Parthos omen fecere M. Crasso venales praedicantes voce, Cavneae. Teubner-Mahoff edn. transcribed at Bill Thayer's site [2]
duke.edu
Donald Lateiner, "Signifying Names and Other Ominous Accidental Utterances in Classical Historiography", Greek, Roman, and Byzantine Studies, (2005), 49."Archived copy"(PDF). Archived from the original(PDF) on 2010-06-14. Retrieved 2010-04-30.{{cite web}}: CS1 maint: archived copy as title (link)
etymonline.com
Online Etymology Dictionary. "Omen". Douglas Harper. Retrieved 8 March 2011.
"If we are going to accept chance utterances of this kind as omens, we had better look out when we stumble, or break a shoe-string, or sneeze!" Cicero De Divinatione 2.84: Loeb translation (1923) online at Bill Thayer's site [1]. In Pliny, Historia Naturalis, 15.83: ex hoc genere sunt, ut diximus, cottana et caricae quaeque conscendendi navem adversus Parthos omen fecere M. Crasso venales praedicantes voce, Cavneae. Teubner-Mahoff edn. transcribed at Bill Thayer's site [2]
Donald Lateiner, "Signifying Names and Other Ominous Accidental Utterances in Classical Historiography", Greek, Roman, and Byzantine Studies, (2005), 49."Archived copy"(PDF). Archived from the original(PDF) on 2010-06-14. Retrieved 2010-04-30.{{cite web}}: CS1 maint: archived copy as title (link)