Well not really the classroom, but in my high school we were repainting the halls and or principle decided we should paint some good quotes up above the lockers. Based on wataru's translation, I convinced my group to put up,
"Even though you'll never be perfect, you shine in your imperfection," from the song TO BE. For the record, of all the quotes on the wall this was the only one that was said by a nonwhite, nonmale, nondead person. Pretty neat if you ask me
Yeah, not really Ayumi in the classrooms, but Ayumi in the schools is close enough right?