This paper underlines the importance of the debate now being carried on in Brazil with reference to Amazonia and stresses the symbolical character with which it has been clothed. This debate is more than a clash between intellectual and political conceptions, the conflict-ridden encounter of the nation with its own destiny is dramatized within it. Seven theses stand out, representing the main prospects in question and their variants. In dismantling them one by one, the author proposes alternatives and above all suggests a kind of analysis epistemologically oriented by successive shiftings of viewpoint. This mobile approach makes it possible to reveal the partial truth of each thesis over the others. Theses (1) and (3) refer to the inexorable and all-encompassing character of capitalist expansion in rural areas, qualities which are regarded as likely to cause the reactive social movements themselves to succumb. It is shown that economic and political processes are often episodic, reversible, and subject to political interventions, especially to selective action on the part of the State. Theses (2), (4), and (5) affirm that the peasantry possesses its own conceptions of the land, that it is autonomous at productive level, and that it resists the advance of capitalism. It is demonstrated that these theses oversimplify, deny ambiguities, and are based on a logic that wrongly presupposes two homogenized social processes and blocs. Alternatively, the existence of multiple actors should be recognized, oriented by various strategies which are redefinable because they are not deterministically derived from socioeconomic conditions; the peasantry is not fighting to defend the essence of an idealized peasant being, but a particular series of ad hoc negotiable values, in the face of different concrete situations. In the discussions of theses (6) and (7), the author comes to grips, on the one hand, with the view that explains the apparent mobilizing success of the Roman Catholic Church through its ‘option on behalf of the poor’ and, on the other hand, the political criticisms usually directed at intellectuals who question traditional conceptions, when these supposedly favour the underprivileged.