This book aims to be a contribution to the friendly and well-meaning acquaintance of us Greeks with other Europeans. It might even help us better understand where we Greeks belong: to the East or to the West? Ancient Greek history obliges us to belong to the West. Byzantine history and Christianity oblige us to belong to the East. Thus, according to Zambelios, our national schizophrenia arises. If this book helps you to overcome, even to the slightest extent, the national schizophrenia that each of us carries, it may protect you from more serious forms of psychopathology. Such as, for example, that of chauvinism, which is the most "pure" and dangerous form of collective madness. The one that lies at the root of every fascism.