Liu Zhipeng (1st R), one of the founders of Xichuangzhu APP, shows Apple's CEO Tim Cook (2nd L) how to write calligraphy on iPad with Apple Pencil at Beijing Confucian Temple in Beijing, capital of China, on Oct. 10, 2018. Cook paid a visit to Beijing Confucian Temple and the Imperial College on Wednesday. (Xinhua/Cai Yang)