 In addition to his literary accomplishments, Schiller was a formidable philosophical thinker. Between 1791 and 1796, he authored a range of theoretical works that are both sophisticated and original. These writings primarily concern aesthetics, but they stake out notable positions on ethics, metaphysics, ontology, and political theory as well. Together, his essays helped shape one of the most prolific periods of German philosophizing; since then, they have served as a significant source of philosophical insight from an aesthetic practitioner of the highest standing.