We should learn from Comrade Li Dazhao's firm belief in Marxism. Comrade Li Dazhao took the lead in introducing, propagating and studying Marxism in China, and was an instigator in China in the early 20th century. After the victory of Russian October Revolution, he accepted the Marxist theory that he thought could really save China and began to publicize Marxism in China. Under the rule of Northern Warlords, it was very difficult for China to spread Marxism, but with the fearless attitude of pioneers, he clearly pointed out that Marxism is the truth of our times and a "guiding light for saving the nation from extinction" and actively put it into action. It is the hard work of a group of revolutionaries such as Comrade Li Dazhao that has made Marxism widely spread in China, made a large number of advanced young people accept Marxism and embark on the revolutionary road, and also promoted the close combination of Marxism and the workers' movement, making the working class in China develop into a self-supporting class armed with Marxism. All these have laid a solid foundation for the development and victory of China's new-democratic revolution. Comrade Li Dazhao is unswerving in faith and truth, and has the courage to spread and practice Marxism. He really achieved what he called "going forward", "making great efforts" and "following with blood".