The craving to know stuff, well -- that's why you're in uni, eh? The hardest lesson for me to learn, since I was one of those know-it-all kids (corrected teachers' spelling errors all the time, etc., etc.) was how to ask questions. After all, smart people have the answers, right?

Well, not exactly. When you reach a certain point, you switch from demonstrating your smarts by "having answers" to "having questions". That means the smart people are the ones asking all the questions. It's a different frame of mind.

As for lecturers, just remember this: they spend a lot of time thinking and talking about those topics, so they're going to sound very smart indeed. I'll bet a good question will get them thinking, and when they start thinking, they're going to be saying "Um" and repeating themselves too. ;-)

I'm not telling anyone anything. :-)