My primary philosophy is that everyone knows something that is worth learning.
I agree with your philosophy. I was just saying the other night at a party, after asking a lot of questions of someone, that I'd almost always rather be the one learning in the conversation. I ask a lot of questions and it's made all the difference. Of course, I'm happy to "teach" when the opportunity arises but for the most part people are so interesting, it's a shame to not learn more about/from them.
Asking questions and teaching interactively is a actually a great way to learn something interactively too. If you are with someone else, and you teach them something, often times you'll find that they will give you a perspective on the subject you hadn't thought of before. So you've gained in at least 2 ways by asking questions, first you have helped yourself by learning more and second you have helped the "teacher" gain a new perspective on the problem.