The language lab in the teacher's mouth is a powerful tool, just like musical instruments in the hands of performers, pigments in the hands of painters, marbles and carving knives in the hands of sculptors. There is no music without musical instruments, no painting without paints and brushes, and no sculpture without marble and carving knives. Similarly, without a vivid, deep-rooted and moving language, there would be no school and no education.

Language is like a bridge, through which educational science becomes a teacher's teaching art and teaching ability.