Even his best friends thought he was a Nazi, so why should we pay any further attention to Heidegger’s philosophical writings? We asked a selection of Heidegger scholars this question: “Does Martin Heidegger’s involvement in the Nazi Party and his anti-Semitism, as evident in the recently published Black Notebooks, make a difference to how we should regard him as a philosopher and engage with his work?”

On how easily and dangerously poor reasoning can become accepted wisdom.