CHEATS NEVER PROSPER.
Cheats never prosper.: translation
Cheats never prosper. & Cheaters never prosper.
Prov. If you cheat people, they will not continue to do business with you, and so your business will fail. •
Customer: You charged me for ten artichokes, but you only gave me nine. Grocer: Too bad. You should have counted them before you paid for them. Customer: Cheats never prosper, you know.