Immanuel Kant was a German philosopher and one of the central Enlightenment thinkers.
Theodore Adorno was a visionary philosopher, sociologist, and musicologist, known for critiquing capitalism and modern culture.
George Santayana was a Spanish-born American philosopher, essayist, and poet known for his influential works on aesthetics, culture, and the nature of reality.
G.W.F. Hegel was a German philosopher whose ideas on history, reality, and the human spirit have profoundly influenced Western thought.
Richard Wollheim was a British philosopher and art critic known for his significant contributions to psychoanalytic aesthetics and philosophy of art.