慎终如始 | shèn zhōng rú shǐ
Xi Jinping used this chengyu during his remarks regarding the response to COVID19 at the March 4, 2020 Politburo standing committee meeting.
Meaning
Always be cautious; end carefully, as in the beginning《老子》
Original
“湖北和武汉疫情防控任务依然艰巨繁重，其他地区人员流动和聚集增加带来的疫情传播风险在加大，加强疫情防控必须慎终如始，对疫情的警惕性不能降低，防控要求不能降低，继续抓紧抓实抓细。”
Source
http://www.xinhuanet.com/politics/2020-03/04/c_1125663518.htm