What's so great about teaching?

A couple ways of looking at it.

First off, I like the idea of people in general. I know humans can be pretty darn cruel and savage and so on, but I hope that if some master alien race was looking down on all these little human organisms, they would come to the conclusion that there is more here worth preserving than destroying.

Of course, I'm not sure most humans would agree with that, but who's counting. Education is the greatest tool mankind has for advancing and improving the species in general. So from a societal perspective, teaching is extremely important. Oh, and I use the term "mankind" loosely.

Second, teaching is a tangible way to help individuals achieve goals, both personal and professional. That is a great thing to be a part of.