Rero uses writing to clearly visualize his critical thinking towards a fleeting and irreducible reality. The French artist takes up a rhetorical figure dating back to mannerism, oxymoron, a form of semantic cohabitation of verbal oppositions used in the 16th century and, at that time, capable of representing contradictory reality. seek to penetrate the fundamental principles of our existence: freedom, progress, censorship and self -censorship, raying terms in opposition to such concepts which endanger the freedom of men.