What is Li Dazhao's poem called by Lu Xun?

Li Dazhao's poems were praised by Lu Xun as "a monument in the history of revolution".

Introduction to Li Dazhao:

Comrade Li Dazhao is a pioneer of capitalism in China, a great Marxist, an outstanding proletarian revolutionary and one of the main founders of the * * * production party in China. He is not only an outstanding leader in the early days of our Party, but also a well-known scholar with profound knowledge and the courage to explore, occupying a lofty historical position in the capitalist movement and national liberation in China.

Brief introduction of Lu Xun:

Lu Xun (188 1 September 25th-19361October19), formerly known as Zhou Zhangshou, later renamed Yushan, later changed to Yucai, "Lu Xun" is his1. A famous writer, thinker and educator, he was an important participant in the May 4th New Culture Movement and the founder of modern literature in China. Mao Zedong once commented: "Lu Xun's direction is the direction of the new culture of the Chinese nation."