Brod, who could lend a touch of kitsch to anything, described Kafka’s stay in Zürau as an ‘escape from the world into purity’. He also viewed it – he wrote to his friend – as a ‘successful and admirable enterprise’. It would be hard to find two adjectives that irritated Kafka more. He replied to Brod with a closely argued letter in which he explained that the only sensible solution he had ever reached in his life was ‘not suicide, but the thought of suicide’. If he didn’t go beyond the thought, it was due to a further reflection: ‘You who can’t manage to do anything, you want to do this?’ And here was his closest friend speaking to him of success, of admiration, of purity.
— Roberto Calasso, K. (tr. Brock)