That said, for everyone's preservation, let's take it seriously and apply it to current "political' events.
To try to comprehend why we, and those that attack us, disregard being morally wrong. Why we and they both believe that it be a gain and advantage to be morally wrong.
It is morally wrong to collaterally assassinate Pakistanis, their children and families, along with targeted designated enemies by missile-fire from Predator drone aircraft.
Cicero's sane, wise and obvious sounding aphorism will not be equally applied by our politically powerful nor by our mass media.
No, they will insist that our being morally wrong enables us to make some gain to our advantage and that only those attacking us mistakenly believe being morally wrong will make some gain to their advantage.
Of course we are not going to hear much, if anything, about what is morally wrong with America's homicidal imperialist foreign policy. At least, not until innumerably more disposable human beings are sacrificed.
Cicero's axiom is going to continue to be blanketed over with singular and spectacular condemnation of the Pakistanis who are being morally wrong.
This writer believes that Mankind will not permit its destruction for frightful lies, no matter how many powerful nations subscribe to the present insanity of self-righteous immorality.
Criminally insane attack can always breed further criminal insanity. But one day, perhaps soon, the mentally healthy billions will prevail to save our planet. And save us all from these governing few who in wild desperation have descended into blind savagery, preposterously posturing as serving Humanity while actually serving those who believe themselves to be its more deserving betters.
Preposterous posturing: for example, Obama thinking he is Napoleon. But rather than being in hospital is a sitting President and Commander-in-Chief.