I suppose an active imagination can be a form of madness. Or it can be the thing that keeps you from going mad.

A library is a platform upon which we catch trains to Every Where and Any Place, Another Time and Across Space. All aboard!

So much of teaching is sharing. Learning results in sharing, sharing results in change, change is learning. The only other job with so much sharing is parenting. That's probably why the two are so often confused. You can't test what sort of teacher someone will be, because testing what someone knows isn't the same as what someone is able to share.

If you give people an idea these days, they just think you are sharing it with them so they can critique it, play devil's advocate, and so on. It doesn't occur to them that they might help or get enthused or at least have the courtesy to get out of your way.

The goal is not necessarily to succeed but to keep trying, to be the kind of person who has ideas and see them through.