Omar Benhar is an INFN research director and teaches Relativistic Quantum Mechanics and Quantum Electrodynamics at the University of Rome, "La Sapienza". He has worked extensively in the United States, and since 2013 has served as an adjunct professor at the Center for Neutrino Physics of Virginia Polytechnic Institute and State University. Prof. Benhar has co-authored two textbooks on Relativistic Quantum Mechanics and Gauge Theories, and published more than one hundred scientific papers on the theory of many-particle systems, the structure of compact stars and electroweak interactions of nuclei. Stefano Fantoni has been Professor of Theory of Nuclear Interactions at the International School for Advanced Studies (SISSA), in Trieste, since 1992, and served as Director of the School between 2004 and 2010. He has authored and co-authored over two hundred papers published in international journals. In 2007, Prof. Fantoni has been the recipient of the Eugene Feenberg Memorial Medal for Many-Body Physics. In recognition of his role to improve communication between the scientific community and the general public, in 2009 he has been awarded the UNESCO Kalinga Prize for the popularization of Science.