By selecting the ?rst week of June 2008 for the Nobel Symposium Single Molecular Spectroscopy in Chemistry, Physics and Biology , Rudolf Rigler, Jerker Widengren and Astrid Grasl und have once again won the top prize for Meeting Organizers, providing us with a Mediterranean climate on top of the warm hospitality that is unique to Sweden. The S? anga Sab y Conference Center was an ideal place to spend this wonderful week, and the comfort of this beautiful place blended perfectly with the high calibre of the scienti?c programme. It was a special privilege for me to be able to actively participate in this meeting on a ?eld that is in many important ways complementary to myownresearch. Iwasimpressedbytheinterdisciplinarywaysinwhichsingle molecule spectroscopy has evolved and is currently pursued, with ingredients originating from physics, all branches of chemistry and a wide range of b- logical and biomedical research. A beautiful concert by Semmy Stahlhammer and Johan Ull en furtherextended the interdisciplinary character of the s- posium. I would like to combine thanks to Rudolf, Jerker and Astrid with a glance into a future of other opportunities to enjoy top-levelscience combined with warm hospitality in the Swedish tradition. Z urich, Kurt Wuth rich April 2009 Participants of the Nobel-Symposium 138: First row: Sarah Unterko?er, Anders Liljas, Xiao-Dong Su, Birgitta Rigler, Carlos Bus- mante, Toshio Yanagida, Steven Block, Xiaowei Zhuang, Sunney Xie. Second row: Ivan Scheblykin, Lars Thelander, Petra Schwille, Watt W.