Seems like the one who has nothing else to do, or no expertise / interest in subject becomes a teacher. I can say that with confidence about my school. My physi

Seems like the one who has nothing else to do, or no expertise / interest in subject becomes a teacher. I can say that with confidence about my school. My physics teacher, for example, was hardly interested in explaining why we solved a particular problem in 'a way'. If you ask him, He'd say "Just do it, will ya?" He wasn't into Physics at all. While this should be opposite. Most passionate people should teach. I know I could have learned most of it myself - but when it comes to 'real problem' and inspiring me to teach - you need a "great teacher". A thought leader. My Chemistry teacher was an exception. He never started or ended lectures like others saying - "This chapter has xx quota in exams so study it well." He'd go in depths explaining real life problems and his lecture would complete on notes like, "When you become scientists - you will solve this problem [Liquidation of Hydrogen for example]" Man that was a teacher, he inspired us to study Chemistry, looked at us as scientist and loved Chemistry himself.