Reaching his 90th birthday in 2016, Gao does not know how to use the computer or any other modern, technology-based device, which he accepts despite some annoyance. "You can't be a jack of all trades in life. Self-awareness is important in art." He explains that we should be easy-going and maintain a low-profile in life while seeking to differentiate ourselves in the art world. Without this, one cannot produce any artistic achievement. [Photo by Chen Boyuan/China.org.cn]