Read the students' valuable comments and leave feedback. To challenge something new, use 'passion' first, and then 'stretch' once you start the challenge. Passion is like fire, so it has power, but it goes off quickly. People who use passion for a long time get tired quickly. Persistence is not as powerful as passion as water, but it can be maintained for a long time. Start with passion at first, and then learn the know-how of flowing like water, using perseverance, not passion. recommended literature Passion is trash, Scott Adams, 2015