As a venerable tradition of the human anatomy teaching at Peking Union Medical College, the opening ceremony is the medical students' first lesson on their professional journey. With the guidance of the "silent mentor" spirit, they will commit themselves to the medical profession, aiming to ease human suffering and promote health. Peking Union Medical College established a voluntary body donation program in 1999 and, so far, has received body donations from thousands of individuals from all walks of life.