Very disappointed. I expected an exploration of possibilities métaphyisiques, scientific, philosophical, etc .. The book deals only with the syntactic aspect of the sentence, drowning out the subjects player, made historic reminders unrelated. Interpreter views (Bergson, Spinoza, ..) or unsubstantiated link with the subject. I do not understand that Normale Sup aéopage of intellectuals has committed these writings. The real title should be 'erratic Discussions to fill the silence' This book can precisely calibrate furniture.