This volume brings together essays written by renowned authors from around the world addressing the wide range of A. G. Vigo's philosophical interests: ancient philosophy and its reception, transcendental philosophy, and practical philosophy. In texts that engage with the honoree's work, the contributors—hailing from Germany, Argentina, Brazil, Chile, Spain, the United States, and Mexico—highlight the significant influence of his scholarship on the study of practical philosophy, as well as the interpretation of Plato, Aristotle, Kant, Husserl, and Heidegger. The diversity of languages and themes collected does justice to the breadth of professor Vigo's impact.