Introduction to the Hall: Hanging high above the main hall is the plaque "Morality and Filial Piety Eternally Promoted" presented by Xu Shichang, President of the Republic of China, to Li Zhenfa, the academician's great-grandfather. The four words "virtue, filial piety and perseverance" not only fully praise Li Zhenfa's personal spiritual character, but also reflect the fine traditions of the Li family and the Chinese nation.