Answer 1) Plato - Ancient Greek who wrote his Symposium on the philosophy of art
Explanation : Plato was an ancient Greek who was also a philosopher in Classical Greece and the founder of the Academy in Athens, the first institution of higher learning in the Western world. He wrote the a symposium on philosophy of art.
Answer 2) Denis Diderot - First person to critique using a philosophical approach
Explanation : Denis Diderot was a French philosopher,who was also an art critic, a writer, and was best known for serving as co-founder, chief editor, and contributor to the Encyclopédie along with Jean le Rond d'Alembert.
He was a prominent figure during the Enlightenment. He used his philosophical approach to critic the art.
Answer 3) Roger Fry - English artist and art critic who coined the term Post-Impressionism
Explanation : Roger Fry was an English painter and also an art critic. He was also a member of the Bloomsbury Group. He was the English artist who coined the term Post-Impressionism.
Answer 4) Clement Greenberg - American art critic and collector who endorsed Abstract Expressionism
Explanation : Clement Greenberg, was an occasionally writer under the pseudonym of K. Hardesh, who was an American essayist known for mainly his influential visual art critic. He was closely associated with American Modern art in the mid-20th century. He was the one who declared Abstract Expressionism.