It doesn't really matter, but I find it hard to beieve that anyone could have thought that Shakespeare wrote that quote. I don't mean the content, with which I wouldn't quarrel at all, either in respect of Caesar or his current successors - but that's not how Shakespeare used language.

Maybe someone could translate it into Shakespearian English... Actually it'd go better into Shavian, maybe as an out-take from Caesar and Cleopatra.