Why teach?

Although I have never wanted to become a teacher, I have always admired them. What makes a person choose a career where they will be underpaid and overworked. I just read an article that talks about a lady who planned on teaching for a few years, however 29 years later she was still in love with it.  She talks about how shes constantly learning new things and how its always a new adventure. She also mentions how great it feels when your grading a students work and get to put an A on the paper. What's better than a job that you can still love after 29 years? I think that people choose to teach because the joy that it brings out weigh the obstacles that teachers have to face. I also think that someone would want to teach in the U.S because childrens are our future. If we educate children and make in impact on their lives, they can make a difference in the world.Theres a quote that says " I'm not saying its going to be easy, I'm telling you its going to be worth it." I think that the sums up being a teacher really well.