In fact, the birth of Das Kapital is not as we imagined. It was painstakingly pondered, carefully brewed and still water flowed deep in the British Library before it was finally born. Indeed, Marx did spend a lot of energy studying economics in the library, but that was in the period of 1850 ~ 185 1, about 15 years after the publication of Das Kapital. His "enemies" include the times themselves, his own procrastination, poverty, illness and countless other factors.

In this year, he resumed the economic research that he was forced to put down after living in Paris in 1844, and studied the works on rare metals, money and credit in 1 year; In February, I studied Hume and Locke's economic works and more monetary works; In March, I studied Ricardo, Adam Smith and circulation works; In April, continue to study Ricardo and monetary works; In May, I studied the works of Carey, Arthas and principles of economics. In June, study books on value, wealth and economics; In July, I studied the book "Factory System and Agricultural Income"; In August, I studied books on population, colonization and Roman social economics. Learn books on banking, agronomy and technology in autumn.