Johann Chapoutot takes the Nazi system seriously. Not only as a machine for the destruction of human beings, as an administrative machine, as a machine producing the fascination of human beings, brought to serve the machine, but as an intellectual machine to be taken seriously. Taking a system seriously is to understand it. This is not admitting it. It is to underline its bone to better identify it, to attach markers, to recognize some traces here and now. Yes, we must take an interest in the Nazi system (I), to continue to seek to understand Nazi legal system (II), to admit the part that intellectuals took in building a system that revolutionized the intellectual vision of the world by inventing a Nature predominate on everything, even human beings, an intellectual construction in which Law and professors of law had a great place. This allows us to ask ourselves, not without fear, if we are not confronted today with a similar "cultural revolution", the scale of which we do not want to see, which we maybe collaborate (IV). Read below.