Zhou Yuan, founder and CEO of Zhihu, China's popular question-and-answer website, gives a speech at a sub-forum of the sixth World Internet Conference at Wuzhen, east China's Zhejiang Province, Oct. 20, 2019. The sixth World Internet Conference opened Sunday in Wuzhen. With the theme of "Smart, connectivity, openness and cooperation: jointly build a community of shared future in cyberspace," the three-day conference will bring together more than 1,500 participants from over 70 countries and regions, including members of the Internet Hall of Fame, Nobel Prize winners and Turing Award winners. (Xinhua/Huang Zongzhi)