When I was a high school freshman my locker was next to a teacher's office named Mr. Hanson. During passing periods when the students were exchanging books in their lockers, Hanson would always talk with Mr. Fleege (another social science teacher) outside his office in earshot of the students. They would intentionally talk in earshot of the students, as these people were not stupid, and they knew what they were doing. It had something to do with transparency and casually imparting information to people. I am always rivoted to conversations like that if people are talking in a way which means they want to be heard by everyone, but it's directed at one person next to them. One day Mr. Hanson was trying to get to the heart of the matter as to what his work as a high school teacher was doing for people. "It is not so much that we are imparting knowledge for people to remember forever. Indeed, we do impart knowledge and students use the things they learn sometimes....