In Dien Phuong ward (Dien Ban town, Quang Nam), ask the couple of teachers Nguyen Van Lai (63 years old) and Ms. Vo Thi Yen (59 years old), everyone from old to young knows and loves them. Although retired, but with love for the profession, for the past 2 years, Mr. Lai and his wife have opened free classes, adding the spirit of learning to many young generations in this poor rural area.