"Teachers plant peaches and plums with ingenuity" means that teachers teach students with ingenuity, just like planting peaches and plums, which can cultivate excellent talents. Ingenuity refers to the craftsman spirit, which is a kind of professional spirit and the embodiment of professional ethics, professional ability and professional quality. Li Tao is a metaphor for educated students. Li Tao is spread all over the world, which means that teachers can make students' talents spread all over the world through careful training.