Professor Sato believes that educational practice is by no means perfect, excellent from one angle, but fatal from another. The fuzziness of educational practice and the "return" of responsibility often make teachers feel lonely and anxious, and the concentric circles centered on the classroom determine the work field of teachers. They show their talents in this narrow and vast field, and at the same time, their hearts are full of contradictions and puzzles. This regression, uncertainty and infinity not only challenges teachers, but also provides teachers with space to reflect and hone themselves.

Teachers' work is always faced with many choices such as knowledge, emotion and ethics, which not only brings psychological load to teachers, but also becomes the driving force for teachers to constantly reflect on themselves and pursue Excellence. The regret left by a class, the unintentional injury of a student, the failure of an educational method, the inapplicability of a teaching method, and the unpleasant communication with parents will all become the reference and experience for the next job. This kind of practical wisdom is precious and can only be verified after thousands of practical operations.

In fact, our work always draws lessons from our existing experience again and again in reflection. Maybe I was too naive when I first started working. I feel so cute and amiable to all my classmates. But after working for a long time, there will always be all kinds of unexpected things. Teachers always have a difficult choice. Between doing a good job and giving students more freedom, between managing discipline and protecting students' self-esteem, between endless work and their leisure, between their educational ideas and the real environment. We always strike a balance between the two. We practice reflection almost every day.