I wish more people knew Latin, too. My interest in languages is one of the reasons both that I am here and that I have a φ in my username. I posted the translation because I thought doing so would teach the most people a useful Latin phrase which I didn't know.

Perhaps I should have posted a link to the Wikipedia article instead. http://en.wikipedia.org/wiki/Quis_custodiet_ipsos_custodes

[edit: added first two sentences]