Ill-gotten wealth is never stable. [ Euripides ]

Dishonesty is the root of discussion. [ Roqueplan ]

What is dishonestly got vanishes in profligacy. [ Cicero ]

Who purposely cheats his friend, would cheat his God. [ Lavater ]

Dishonesty is so grasping it would deceive God Himself, were it possible. [ Bancroft ]

The gains of the wicked bring shortlived pleasure, but afterwards long continued grief. [ Antiphanes ]

Dishonor waits on perfidy. A man should blush to think a falsehood; it is the crime of cowards. [ Johnson ]

Dishonest men conceal their faults from themselves as well as others; honest men know and confess them. [ Rochefoucauld ]

Unfaithfulness in the keeping of an appointment is an act of clear dishonesty. You may as well borrow a person's money as his time. [ Horace Mann ]

It is hard to say which of the two we ought most to lament, - the unhappy man who sinks under the sense of his dishonor, or him who survives it. [ Junius ]

That which is won ill, will never wear well, for there is a curse attends it, which will waste it; and the same corrupt dispositions which incline men to the sinful ways of getting, will incline them to the like sinful ways of spending. [ Matthew Henry ]

If you attempt to beat a man down and to get his goods for less than a fair price, you are attempting to commit burglary, as much as though you broke into his shop to take the things without paying for them. There is cheating on both sides of the counter, and generally less behind it than before it. [ Beecher ]

I have so great a contempt and detestation for meanness, that I could sooner make a friend of one who had committed murder, than of a person who could be capable, in any instance, of the former vice. Under meanness, I comprehend dishonesty; under dishonesty, ingratitude; under ingratitude, irreligion; and under this latter, every species of vice and immorality in human nature. [ Sterne ]