On February 4, 2021, the Center for International Security and Strategy, Tsinghua University (CISS), and CITIC Press Group jointly held a seminar on "Challenges and Choices under the a period of major change that’s rarely seen in a century---- "Seeinging the World 2" seminar and Ambassador Fu Ying's New Book Sharing Meeting in Schwarzman College, Tsinghua University. Xue Lan, Dean of Schwarzman Scholars, Peng Kaiping, Dean of Academy of Social Sciences, Tsinghua University, Da Wei, Deputy Director of CISS, and Liu Xin, Senior Host of CGTN, participated in the roundtable discussion.