These two indirectly conflicting articles speak different languages. They are an eloquent example of a disagreement (i.e. two languages that do not have a common measure) raised by the issue of 'race'. The first is by Vasco M. Barreto, a biologist and researcher at the Faculty of Medical Sciences at Universidade Nova de Lisboa. The second is by Pedro Schacht Pereira who has a PhD in Portuguese and Brazilian studies from Brown University in the United States and often writes about racism in the Portuguese press. Anthony Appiah, an important figure in cultural studies, once said, 'It is time for the biological concept of race to disappear without a trace.' But, as Barreto's article shows, the concept has not disappeared and its traces are still appearing in scientific debates. This debate is far from the 'scientific' racism prior to the Second World War, but still raises controversies, reservations and hesitations. On the contrary, from the point of view of post-colonial studies, it is just a discursive category. And it is precisely on the assumption of race as a discursive construction within a culture and a language that Pedro Schacht Pereira bases the issue of racism in a work by Eça de Queirós.