« On ne naît pas femme: on le devient. »: “One is not born but becomes (a) woman,” thus spake Simone de Beauvoir in Le deuxième sexe (1949), The Second Sex (1953, 2009). How, and in what language(s), would one read that line today in the age of gender variance and trans revolution? Why The Second Sex again? This lecture spotlights the queer translingual simplexity of the Beauvoirean lifeline, its conceptual genius that appears second to none.