It writes about those who work as oxen and horses for the people and those who ride on the heads of the people.
The author praises those who serve the people and describes those who ride on the people's heads and bully the people. Those who ride on the people's heads will be thrown down by the people; those who work as bulls and horses for the people will be exalted by the people.
"Someone" is a lyric poem written by the contemporary poet Zang Kejia to commemorate the thirteenth anniversary of Lu Xun's death. So the subtitle is in memory of Lu Xun. Through the contrast between the two kinds of people, the poem expresses infinite affection and high respect for those who bow their heads and work as cowards; while for those who stand above the people, it ruthlessly exposes and shows full of resentment. The uniqueness of poetry is that it expresses a philosophical theme: people live for the betterment of the majority of people.