Many thanks again to Julia Palffy (Switzerland, on the left in front). I met Julia the first time in the evening at the official opening when she translated the speech of Luigi Leonardi, the chairman of the CDO (Centro Diffusione Origami) into other languages. Later she came to my first seminar and I asked her for help to translate my lecture into Italian and Spanish what she willingly did. It was incredible how fast and certain she moved between different languages.