Ignacio Samper, Director of the European Parliament Office in Spain, discusses his experience within the European institutions and speculates on the main principles and challenges for the future of Europe, including energy dependence and the arrival and integration of immigrants. He also speaks about the benefits of the process of regionalisation in Spain, the communication and information campaigns in which he has been involved, and the value of the principle of solidarity. He finally mentions the need to count on citizens, represented in the European Parliament, in order to consolidate a political union based on interdependence.