Paulo Freire was a Brazilian philosopher and the father of critical pedagogy who developed the concept of conscientization. Conscientization is the ability to critically perceive the causes of social, political, and economic oppression in order to take action against oppressive elements of society. It involves developing a deep understanding of the world that leads to freedom from oppression. Freire viewed education as a tool for liberation that should involve dialogue between students and teachers to develop a shared critical understanding of reality. His educational philosophy emphasized problem-posing education, dialogue, and using education to promote conscientization and liberation.