Caicedo B., Ivania Lucía, Ruth Esther Martínez, and César Oswaldo Ibarra. Ancient Philosophy for Young People: A Selection of Philosophical Texts Aimed at Today’s Young People, With Methodological Aids.. Social Sciences, Arts and Humanities. Colombia,CO: Sello Editorial UNAD, 2017. Accessed November 2, 2026. https://libros.unad.edu.co/index.php/selloeditorial/catalog/book/74.