I think, and in this I hope that my reading competence do not betray me, the main theme is the second that I mentioned, that is, the conquest of independence, because the book does not end until the protagonist doesn’t completely his affair with independence: clarifies things with his mother who is representing the dependency in the emotional, takes position in front of his grandfather, which is who gives the character (is his father figure) and even manages to go out at the end with a woman who captivated him. Another reason supports this hypothesis: the book is aimed at young people who are at this stage as the editorial standard puts it in its form to advertise. On the other hand, regards the human soul, good and evil, and the mystery is solved before reading the last pages of the book, in case that they were the main intentions of the author the book had completed before the lawyer Pestarini (never mentioned his name, only this is lawyer and that belongs to a famous family of attorneys whose last name is Pestarini) to speak with his mother and left completely House of his grandfather. Equally, if it is one or the other main theme is not most important, the more important are the reflections that each one of these themes may raise in the reader, especially for the lawyer. I want to now dwell a moment on the way as the author interpreted each of these two aspects in his book. Unfortunately not me I can stop in each one of them because flood the dimensions of this essay, therefore I shall dedicate myself to the theme of independence without claiming to be exhaustive, because I think that it is the central theme of the book. I think the best way to interpret the position of the author against the conquest of independence in the book is to unravel what symbolizes each of the characters in the book, and that, in view of our protagonist, the lawyer of the Martian, occurs with them.