A new translation of Heidegger's Ph.D. Thesis on Duns Scotus. This edition contains a new afterword by the Translator, a timeline of Heidegger's life and works, a philosophic index of core Heideggerian concepts and a guide for terminology across 19th and 20th century Existentialists. This translation is designed for readability and accessibility to Heidegger's enigmatic and dense philosophy. Complex and specific philosophic terms are translated as literally as possible and academic footnotes have been removed to ensure easy reading.