On 4th Sept. afternoon, the opening ceremony of the exhibition themed “Remain true to our original aspiration and keep our mission firmly in mind—— Cheng Yun and his contribution in building a fine Party culture and keeping its organizations clean ” took place in the Mezzanine Lobby of Siping Campus Library of Tongji University. This exhibition is intended for studying and practicing Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era, and for commemorating the sublime contribution and character of Cheng Yun.