長 江 後 浪 推 前 浪

長江後浪推前浪

长江后浪推前浪

Chang2 Jiang1 hou4 lang4 tui1 qian2 lang4

lit. the rear waves of the Yangtze River drive on those before (idiom) fig. the new is constantly replacing the old each new generation excels the previous (of things) to be constantly evolving