The words in the picture are "If you are confident in your life for two hundred years, you will be able to swim three thousand miles into the water." It comes from Mao Zedong's "Seven Ancient Fragments". The original sentence should be: "If you are confident that you will live two hundred years, you will be like the water hitting three thousand miles." This is a poem he recited while swimming in the Xiangjiang River while studying at Hunan First Normal University. The poem uses the artistic conception of "The Peng migrates to Nanming Ye, and the water hits three thousand miles" in "Zhuangzi·Xiaoyaoyou", showing Mao Zedong's ambition and pride in his youth, and showing his heroic posture in cutting through the waves in the water. The poem is written from both time and space, and reaches sublimation in extreme challenges, fully embodying Mao Zedong's broad, magnificent, and unrestrained revolutionary romantic feelings.