Teachers believe they have a gift for giving; it drives them with the same irrepressible drive that drives others to create a work of art or a market or a building.
A good fighter usually knows, to within a very few seconds, when a three-minute round is going to end.
If I don't feel confident about my body, I'm not going to sit at home and feel sorry for myself and not do something about it. It's all about taking action and not being lazy. So you do the work, whether it's fitness or whatever. It's about getting up, motivating yourself and just doing it.