He wrote it on one of his own paintings:
咬定青山不放松，
立根原在破岩中。
千磨万击还坚劲，
任尔东西南北风。 'It bites into the green mountain and will not let go, its roots set in split rock from the start. Ground a thousand times and struck ten thousand, it stands firm still; let the wind blow from east, west, south or north.'
