Modesty.

If I leave this place learning anything, it's modesty.

I thought I could do better for them.  In fact, I thought there was so much wrong that I wanted to come and fix it.

But the truth is, there's a whole lot I don't know.  A whole lot I didn't even know I didn't know.  Like handling 20 kids at once.  I want to do some things, but I can't until they start to listen.  I want them to do what I say, why should they when they don't even know why I'm telling them to do this or that.

I'm starting to understand why there's training to be a teacher, but there's more to it than just giving lessons.