Abstract
This paper proposes an analysis of the anti-metaphysical and anti-philosophical posture of the poetry of Alberto Caeiro, in order to show how the philosophical question for Truth is displaced by an awareness of the impossibility of signs to tell the truth, which leads to a theory of lie that allows to create a possible world, real from within. Caeiro proposes a return to the realm of the no-semiotics, the pre-logical, but uses the material he refuses: language, signs, poetry. Thus, he stands on the edge of language and “embodies” the semiological project of recognize himself as a lie, a sign, a footprint without trace. By contradiction and paradox as tools of language, Fernando Pessoa, through his main heteronymous, combines philosophy and poetry, renounces the question for Truth –putting an end to the philosophical question– and deviates the unsolvable metaphysical opposition.