"Security consists largely in doing no wrong. People who lack self-control have lives that are frantic and disturbed. Their fears are exactly commensurate with their misdeeds; they are never at rest. After acting, they are agitated and unable to go on. Their conscience does not allow them to proceed with something else and keeps forcing them to confront themselves. Anyone expecting punishment undergoes punishment, and anyone who deserves it expects it. Safety is compatible with a bad conscience, but tranquility is not. The guilty person thinks that he could be caught, even if he isn’t caught. In his sleep he is restless. Whenever he talks of someone’s crime, he thinks of his own, taking it to be insufficiently covered up and concealed. The wrongdoer sometimes has the chance of concealment, but never the confidence of it".

- Seneca, Letters, 105.7-8