Once again prosperous and successful crime goes by the name of virtue; good men obey the bad, might is right and fear oppresses law.
Seneca the Younger (c. 4 BC-AD 65) Roman statesman, philosopher, playwright [Lucius Annaeus Seneca]
Hercules Furens, Part 1, l.255 [Amphitryon] [tr. Miller (1917)]
(Source)
Alt. trans.: "Successful and fortunate crime is called virtue."