Diane,
I agree. I teach a correspondence course online for facilitators of groups for people with life threatening illness. The other day a "student" sent me the most beautiful responses to an assignment. Teachers often learn a great deal when they teach.
I also have learned a great deal about writing, publishing, authors here.
And I also know none of us would be here if we didn't have some sort of need to be here: to learn, to teach, to discuss with authors. I don't go to a job each day and some days are lonely and quiet, which I like, but sometimes I miss being around a lot of people and love communicating with people I have something in common with.
Carol