When we think teacher, we think classroom. When we think leader, we think the corner office or the lectern or a general in front of their troops. But the truth is that a teacher can do their job anywhere and in many forms, just as a leader can.Plutarch would say of Socrates that he \u201cdid not set up desks for his students, sit in a teacher\u2019s chair, or reserve a prearranged time for lecturing and walking with his pupils. No, he practiced philosophy while joking around (when the chance arose) and...