Teaching

There are not many jobs quite as rewarding emotionally as teaching. How many times do you have someone tell you how much they appreciate your work, how much you helped them, how you have changed their life and made them a better person?

It's pretty rare, unless you're a teacher. As one of my high school mentors advised me (he knew I was bound for teaching long before I did): "Teaching won't make you a lot of money, but you will have a very rich life." I really understand that now.