There is no witness so dreadful, no accuser so terrible, as the conscience that dwells in the heart of every man.
Authentication Score 2
Original Citation
Polybius. Ἱστορίαι [Histories]. c. 110 BC, bk. 18.
Current Citation
Polybius. The Histories, translated by W. R. Paton. Vol. 5, Harvard University Press, 2012, bk. 18.