 And the reason why is because the students are in the audience. And if you don't do what you say, they'll let you know. So they do. They're very observant and they ask questions. So I would say that's one of the best ways that teaching and playing go together is it forces you to be consistent and to really, first of all, say what you mean, say what really works for you, and then do it. That's Philip Ying, the violist in the Ying Quartet.