This phrase reminds me of the saying "Insanity is doing the same thing over and over and expecting different results". The phrase is اللي بيجرِّب المجرَّب بيكون عقله مخرَّب (illi beejarrib almjarrab beekoon 'aqloo mkharrab) which literally means "the one who tries what has been tried, his mind is addled", basically the same thing as the first quote.
(The video is all messed up مخرّب :), but the audio is clear.)
In this clip the host is talking to a guest who wants Ahmad Shafiq to become the president of Egypt. The host is telling him that Ahmad Shafiq is just the same as Honsi Mubarak. Why try something you've already tried?
جرّبناه - We tried it.
جرّبوه - They tried it.
نعم - Yes.
طيب. و في مثل بسيط بيقلك إللي بيجرّب المجرَّب بيكون عقله مخرًّب - Ok. And there's a simple saying that tells you, "the one who tries what has been tried, his mind is addled".