Is psychoanalysis possible according to Derrida? what can psychoanalysis give to practical philosophy, and what can philosophy learn from the clinical experience of psychoanalysis? What are the similarities and differences between the philosophical deconstruction of texts and the interpretation of the symptom in psychoanalysis, if both methods go back to the ideas of Freud? How does the concept of truth work in psychoanalysis and philosophy, as long as both practices are guided by it? the materials of this book represent a recording of Dmitry Olshansky's speeches at seminars 2008-2011 dedicated to the work of Jacques Derrida. for this reason, the work does not pretend to be monographic and academic format, but is a detailed commentary on philosophical texts.