Interview with Michael Heinrich Carried out by Darren Roso, Berlin 2018.

What are the theoretical reasons for a biography? For you, Biography plays a fundamental part in understanding Marx’s theoretical work. Throughout the twentieth century, it seems that a debate over Marxist theory was equally a debate over Marx’s biography and intellectual development as such. How has this translated into your account?

I have several reasons for doing so. The first reason comes from my prior theoretical work. When I wrote The Science of Value (1991), which will finally appear in English soon, I didn’t simply present Marx’s critique of political economy. I interrogated Marx’s intellectual development. What was it about Marx’s intellectual development that led to the critique of political economy? This taking into account of Marx’s development was always present in my work. And in this I had to answer to – up to a certain point – Marx’s biography. For example, I had to use Marx’s letters for theoretical questions. But a letter is something quite different compared to a published text. With a letter you always have to ask to whom is this letter written? How free was Marx to tell the truth about his opinions? Did he merely seek to convince a publisher about a project or was he speaking to a comrade? You already need biographical context to answer these questions about the letters. The biographical context was therefore always present in my work, but I didn’t fully realise that at the time.

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