"Raise the bar. Set new goals. Ask your students to do things they might not think they can do at first. Give them the freedom to get creative. To design. To solve problems. To justify their opinions. Then, they’ll turn around and out-think you. They’ll come up with ideas and solutions that you hadn’t even considered. They’ll lead you in a new direction. They’ll make you want to replan, revise, and reflect. Then you’ll feel like you are struggling. That’s when you know you’ll be growing, too. That’s called being a teacher."
Via Beth Dichter