What is the content described in Yin Fu's Farewell to Brothers?

Yin Fu's Farewell to Brothers expresses his farewell to the old class and is full of feelings of rejection. Because Yin Fu is a revolutionary first, then a poet, his poems are closely related to the actual struggle, and his feelings are true. Although there are many inspiring poems, most of them are unambiguous. The content determines that his poems have simple and rough colors, high-pitched and vigorous tones, rapid and vigorous rhythms and firm language, and sing the strong voice of proletarian revolution with strong melody. Because there is no time to carve and temper, sometimes it is inevitable to write roughly. Just when his proletarian poetry took the first step, he was killed by the Kuomintang at the age of 22. Lu Xun enthusiastically affirmed his poem in "Preamble to the Baby Tower": "This is the shimmer of the East, the whistling arrow in the forest, the bud of the late winter, the first step of marching, the great love for predecessors and the monument of hatred for saboteurs. All the so-called mature and concise works are quiet and quiet, so there is no need to compare them, because this poem belongs to another world. " Of course, this includes the evaluation of Yin Fu's poems.