In it identifies the authentic modernismo with what if it can call the So Paulo way, harder and more radical. This radical Sergio, who if manifest, over all in critical the literary one, are completed by studious Sergio, who if benefited with the stay in Germany, of 1929 the 1930, chance to extend the knowledge and to renew the bibliography, that the friends could see weighing in its bookshelves in alentados volumes of Max Weber, Werner Sombart or grossssimo Dictionary of Sociology (Handwrterbuch der Soziologie), organized for Alfred Vierkandt and landmark in the studies of the substance. This experience enriched Carioca Sergio it prepared and it for the ecloso of the decade of 1930, in which if it points out another decisive experience in its formation as historian. 2. SERGIO BUARQUE OF HOLLAND: The LITERARY CRITICAL HISTORIAN Who reads the intellectual trajectory of the young Sergio Buarque of Holland, withdrawing, for example, to the phase of the convivncia with Alfonso d? Escragnolle Taunay, in the old College Is Bento and of the escaped ones of the Viennese Coffee in company of the modernistas futures Mario and Oswald de Andrade, Alcntara Machado and Rubens Borba de Moraes, since soon if apercebe of that much early would blunt in it the two faces of the great intellectual who very soon would come to be, of the historian and of the man of letters. Ones of the contributions most original of Sergio Buarque of critical Holland to the literary one comes exactly of its sensitivity of historian. In accordance with Antonio Arnoni the Prado, Sergio had conscience of that the first step of the critical one is in the proper elaboration of the poetical one, in each step at each time, the tasks that assume in face of this process deepen the consequences that the product of similar elaboration goes to find in its public and its time. .