text: The most important contribution to peace of mind is never to do wrong. Those who lack self-control lead disturbed and tumultuous lives; their crimes are balanced by their fears, and they are never at ease. For they tremble after the deed, and they are embarrassed; their consciences do not allow them to busy themselves with other matters, and continually compel them to give an answer. Whoever expects punishment, receives it, but whoever deserves it, expects it. Where there is an evil conscience something may bring safety, but nothing can bring ease; for a man imagines that, even if he is not under arrest, he may soon be arrested. His sleep is troubled; when he speaks of another man's crime, he reflects upon his own, which seems to him not sufficiently blotted out, not sufficiently hidden from view. A wrongdoer sometimes has the luck to escape notice but never the assurance thereof. Farewell.