This is a review of the work A discourse on the sciences of the sociologist Portuguese Boaventura de Sousa Santos. The author defends an antipositivist epistemological position based on the obstacles of physics and mathematics on the grounds that scientific knowledge is socially constructed and that its objectivity does not imply neutrality. Santos (2008) presents the crisis of the dominant paradigm and identifies the main traits that emerge so emerges as an emerging paradigm. When we interrelations with Education, we can say that there is no knowledge without subjectivity, that is, the objects of research have to do with our life history, but that need to go through the epistemological approach, the historically constructed knowledge. We can think of the school as a space for socialization of knowledge, in the sense that they become alive, this return and exchange of knowledge with common sense happen, after all, if knowledge does not pass to the world of life, does not help to a good conviviality between people, it loses its real value and its meaning. One needs to look at pedagogical practices as an opportunity to become science, with projects based on investigations committed to the reality and meanings of students.