A trial of an informative nature on man. The author omits the abstract and bookish concepts that are often used to explain the human being and those which seem insufficient and sometimes even wrong: he prefers to approach the other to his neighbor, a way of looking solidarity, and forget the old corseted and knowledge in search of a knowing simple and simple truths are born directly from a human knowing and feeling among humans. From a deep warmth and sympathy, will brief chapters reviewing in straightforward language and warm, many of the classic anthropological and psychological issues: the appearance of humans, the emergence of self-identity, the territories of the unconscious wishes, love and sexuality, aggression and guilt, pain and illness, mental suffering in all its variants, the madness, death, the real possibility of happiness. This work presents an ambitious task: to discover what is human. As a travelogue, pass through noisy cities and silent forests, deep valleys, into the man in search of the essence that distinguishes him from other animals: a rational mind and sentimental, a social species, a being and a community that have memory and exist as memory. With sexuality and sense of guilt, anxiety and hence, various pathologies. After traveling a long road, the traveler is back in the starting point but wiser, less arrogant. The journey has been long, very long. We tried to talk about the human being with such an amazing mental organ which finds its most intimate texture and weave the threads which bind him to his fellows, that being in constant construction, capable of transforming the nature and nature, of that inveterate creator of myths and reflections were dreamed, of the self that is unknown and tricks, and can also take their own truths, however painful they are sometimes, of the being that is suffering and anguish , and also achieves moments of human happiness that still drags be the instruments of their native past and the driving force of instinctual world, of that human being with the love and spiritual impulse shaper of his most privileged; that being capable of the best and most unimaginable future is headed to a large extent, still depend on what he builds with his strong hands and sweet. Long has been the way we have done together. I liked to accompany you on the quiet nights and stormy seas, both pregnant dreams and tenderness, and in the hazy sunsets and rough when we cry together. Those fruits have been collected, and that the text I can offer. To you, gentle-eyed and cruel, I like light and shadow. To you, so human.