蚍蜉

big ant;mayfly
蚂蚁缘槐夸大国，～撼树谈何易。(毛泽东词《和郭沫若同志》) Ants on the locust tree assume of great-nation swagger,And mayflies lightly plot to topple the giant tree. (Mao Zedong’s poem Reply to Comrade Guo Moruo)/～撼大树，可笑不自量an ant trying to topple a giant tree—ridiculously overrating one’s own strength