||Arthur Schopenhauer (1788-1860) stands as a highly influential figure among German philosophers, leaving an indelible mark on the philosophical landscape of the late 19th century onwards. Known for his systematic approach, Schopenhauer sought to encapsulate the totality of intuitive understanding of the world and the human mind through the lens of abstract concepts. His philosophical framework revolves around two central concepts: (1) representation and (2) will. (1) The realm of representation, as explored by Schopenhauer, encompasses intuitive cognition, threading through the intricacies of time, space and causality. Simultaneously, he explores the realm of reason, which encompasses the realms of language (including logic and eristic dialectics), philosophy of science, and practical rationality. Schopenhauer's exploration also extends into aesthetics, culminating in an extensive theory of beauty and a comprehensive philosophy of individual art forms. (2) Schopenhauer approached the concept of will in order to examine nature, the physical world and metaphysics. Within this scope, he moved on to practical philosophy, distinguishing between (a) the affirmation and (b) negation of the will (to life). (a) The affirmation of the will includes ethical action, the philosophy of law, the theory of the state, and social theory. (b) The negation of the will, on the other hand, includes ascetic practices motivated by religion, contemplation, self-sacrifice, and related topics. -- Schopenhauer's philosophical contributions went beyond his systematic framework. For example, his intercultural perspective on philosophy with a particular focus on Asia, his ideas on compassion, his critique of uncritical faith in reason and optimism, his advocacy of intuition, and his thoughts on animal rights have had a profound impact to this day.