[Dubh_Ghlase]

I think the quote is something like the following:

Rome did not create a great empire by having meetings,
they did it by killing all those who opposed them.

[MrB]

I was referring to this:
civis romanus sum

"Non-Romans who murdered Romans were subject to crucifixion. There is a story that Julius Caesar opposed this torture, and ordered his soldiers to kill the malefactors humanely. He nonetheless hung the bodies on crosses, with placards describing their offenses, for all to see. Had the French language existed, Caesar might have said, "Pour encourager les autres," or, "To encourage (as an example for) the others." Would-be killers who saw the bodies quickly understood that it was unhealthy to murder Roman citizens. "