French President Francois Hollande (C) speaks with the 2013 Chemistry Nobel Laureate, Martin Karplus (R), as he sits beside the 1987 Nobel Prize in Chemistry winner Jean-Marie Lehn (L) in the Biophysical Chemistry laboratory at the ISIS (Institut de Science et d'Ingenierie Supramoleculaires) in Strasbourg, eastern France, January 30, 2014. REUTERS/Frederick Florin/Pool (FRANCE - Tags: POLITICS SCIENCE TECHNOLOGY)