In 2010 I was invited to take part in a cartel with Filip Geerardyn, Wim Matthys and Elisabeth Van Dam for a close reading of Lacan’s text “Kant with Sade”. In the aftermath of this I wrote this text, which is neither a record of the cartel, nor an attempt to interpret or to summarize Lacan’s text. It is the result of following the tracks that Lacan sets out, more a Deleuzian Rhizome than a logical or critical argument. Following these tracks leads to a dramatic discovery. Lacan’s act of writing is an invitation to work through some crucial questions on ethics (Kant and Freud) rather than to consume Sade’s literature or to consider the case of the French libertine.