Flamboyant Peking University president Zhou Qifeng has sparked a public debate over filial piety after returning to his ancestral home in Hunan province for his mother's 90th birthday.
Pictures of the professor kneeling in front of his mother before they locked in an emotional embrace have circulated widely on the internet on the mainland. Some people hailed Zhou as a role model for filial piety while others dismissed the whole episode as a show.