This book is a personal biography of Marx, the "first thinker of the millennium". The author tells the glorious life of Marx in vivid and delicate writing. The whole book is written from the birth of Marx to his death, from his growth as a child, his studies and love as a teenager, to the formation and development of his materialist dialectics thought, his observation and thinking about the social conditions and people's lives at that time, to the creation of the great Marxist theory, and his running and fighting for the proletariat of the world in an extremely difficult environment. Marx was knowledgeable and profound in thought. He was full of ideals to transform society and put them into practice. He had a profound influence on the international workers' movement and the communist movement around the world. He was also a loving, affable friend, husband and father. His undying love with Yanni and his heartfelt class friendship with his lifelong friend Engels have become stories that have been passed down through the ages. The author is a Marxist research expert who once worked at the Central Compilation and Translation Bureau. The book integrates readability, historical materials and ideological aspects, and selects hundreds of precious historical pictures to provide readers with a rich understanding of Marx and the era in which he lived.