Concluding Address

Abstract

Before I offcially conclude this workshop - far be it from me to attempt to compete with some concluding remarks already delivered at the meeting with various levels of passion by Gennady Bisnovatyi-Kogan, Giulio Auriemma and Sergio Colafrancesco - I would like to comment on some of the highlights emerging from our fruitful week of discussions about Multifrequency Behaviour of High Energy Cosmic Sources, without any pretension of completeness.