[quote=@Frettzo]
It doesn't matter either way, words are just words. And Shakespeare is a pretty original name, you gotta admit.
[/quote]

Words carry meaning. In this case "Et Tu, Brute?" carries a strong feeling of betrayal. But if he didn't say it, than it implies he may not have felt as strong a sense of betrayal as we all assume he did, or that at least he didn't vocalize it.

Also, I'm a literature geek. Leave me to my corrections and arguments.