Editor's Note: The 10th Nishan Forum on World Civilizations, which is being held in Qufu, Shandong province, the hometown of Confucius, from July 10 to 11, aims to promote traditional Chinese culture and strengthen international cultural exchanges and cooperation. Later, the Song and Ming Neo-Confucian scholars merged it with Yan Hui's concept of happiness, coining it "The Joy of Confucius …