Interview with Lex Roth, carried out by the Centre Virtuel de la Connaissance sur l’Europe (CVCE) on 3 June 2010 at the château de Sanem. The interview was conducted by Elena Danescu, a Researcher at the CVCE, and particularly focuses on the following subjects: the personality of Pierre Werner, the Luxembourgish language as a marker of identity, and Luxembourg and the European integration process.