Since ancient times, I have been strict with my teachers and kind to my father. How good the teacher is to the students! Not for all things, not for all things. Fortunately, as a teacher today, I am extremely lucky and secretly pleased. I am very happy to celebrate Master Gong's birthday. At the same time, I want to express my sincerity with pen and ink. I hope Master, God bless you and live longer than Nanshan. Dear student XXX (not enough words)