Doctor of Philosophy at the National Autonomous University of Mexico (UNAM) and a law degree from the Autonomous Technological Institute of Mexico (ITAM), whose Academic Department is Professor of Theory, Methodology and Philosophy of Law. He is a member of the National System of Researchers, the Mexican Academy of Sciences and the College of Bioethics AC and fellow of CONACYT, the British Council and the John Simon Guggenheim Foundation. Ernesto Garzón Valdés directed the "Library of Ethics, Philosophy of Law and Politics", and Jose Ramon Cossio, the "Contemporary Legal Doctrine" collection. He is founder and member of the editorial board of the journal Isonomía.

He has authored books Liberal Education (1997), Liberalism, rule of law and minorities (2001), From abortion to cloning (2004), Law, morality and power (2005), Between freedom and equality (Trotta, 32010 ) and moral boundaries of law (2009) and editor and compiler of numerous books, including the most recent: Tolerance and Pluralism (2005) Secularism (2007), Globalization and Law (with Miguel Carbonell) (2009), ¿What to do with drugs? (2010) Debates on constitutional and human rights of women (with Juan Antonio Cruz Parcero) (2011).