Mario Ruíz Sotelo has a PhD in Philosophy from the National Autonomous University of Mexico (UNAM) with a doctoral thesis The Political Philosophy of the Latin American Enlightenment and, likewise, a Bachelor of Sociology from the same university.

He has been a professor at the Universidad Iberoamericana. He has practiced as a teacher, teaching the subject of "Modernity and Illustration in Latin America", at the University of the Cloister of Sor Juana. He has been a teacher since 2011, teaching the subjects of "History of Modern Mexico", "History of Political and Social Thought" and "Philosophical Problems", in the Faculty of Political and Social Sciences and in the Faculty of Philosophy and Letters of UNAM.

His research work is centered around the projects on "Political Philosophy in Latin America", "Modernity and Globalization" and "Democracy in Mexico". Among his publications we can mention Critique of Imperial Reason. Bartolomé de Las Casas' political philosophy, from 2010, and his collaboration in the 2011 book Latin American, Caribbean and Latin Philosophical Thought, in addition to various articles in specialized magazines.