Good points with your further thoughts on teaching. In fact, I did some research for my next article and I give you the quotes I found and will publish:

... it is apparent to anyone who has taught others that the teacher learns more than the students do. Teaching is a much better way to learn than being taught. Schools are upside down. Students ought to be teaching and faculty members should be learning how to help others learn and how to motivate them to do so.

A student once stopped me in the hall and asked, "Professor, when did you teach your first class?" That was easy: I answered, "September of 1941." "Wow!" he said, "You have been teaching for a very long time." I agreed. Then he asked, "When was the last time you taught a course in a subject that existed when you were a student?" This question required some thought but finally I got it and answered, "September of 1951." He said, "Do mean to say that everything you have taught for about fifty years you had to learn without having it taught to you?" I said, "Yes." "Wow,” he said again. "You must be a pretty good learner." I modestly agreed. He continued, "What a pity you are not that good a teacher." He had it right: faculty members know how to learn better than they know how to teach. Therefore, they should be acting as resources to students who are either engaged in teaching others, or learning on their own or with others cooperatively.

Russel Ackhoff - TRANSFORMING THE SYSTEMS MOVEMENT

Yeah, it became very quiet here on Steemit. I hang on because it's what I like: Blogging. Not here for the money ;-) but when so many people fade away, audience also trickles away.