Eric Feezell, this week's Non-Expert at The Morning News, provides a rhetoric lesson on the phrase, "begs the question."

Because it’s been years since I’ve taken any sort of logic class, and since I wholeheartedly disagree with (read: do not understand) the tenets of prescriptive linguistics, I’m going to do some in-depth research on the subject and get back to you.

One Wikipedia… Two Wikipedia… Three Wikipedia…

On the way, Feezell also offers a diagram of the logic suggested by the phrase for those who are visual learners:

[via metafilter.com]