Here's another one I would add: Every time you meet a teacher, or get a chance to weigh in about the education debate, think of those KEY teachers you had in school. The ones who changed your life. Then, ask the teacher about her/his students.
Every great teacher gets to be THAT teacher for some of their students. Teaching is a profound privilege, and one of the most stimulating and challenging professions out there. And every single day, we get the chance to be THAT teacher for someone.