In 1915, when he was barely 19, his friend, Mário de Sá Carneiro, appointed him as editor of the magazine Orpheu, precisely because he was still a minor.
[further explanation needed] This position did not last long, however, as Sá Carneiro's father withdrew his financial support after only two issues.
In 1920, he published one of his best known works, a collection of aphorisms and "paradoxes" called the Teoria da Indiferença (Theory of Indifference).
[1] Having begun as a member of the Portuguese Republican Party, he evolved into a Sidonista and supporter of authoritarian regimes, reflected in his book of interviews, Viagem à Volta das Ditaduras (Journey Around the Dictatorships, 1927).
He served as Commissioner-General for international exhibitions in Paris (1937) and New York (1939), played a major role in organizing the "Exposição do Mundo Português" of 1940, and directed production of the associated Revista dos Centenários, a propaganda journal that ran for 24 issues and included contributions from such notables as Vitorino Nemésio, Júlio Dantas and Aquilino Ribeiro.