Foster became friends with A.J. Ayer although was strongly critical of Ayer's philosophy; he later wrote a book on Ayer's work that Anthony Quinton described as "the only serious monograph about his philosophy".
Foster became friends with A.J. Ayer although was strongly critical of Ayer's philosophy. He later wrote a book on Ayer's work that Anthony Quinton described as "the only serious monograph about his philosophy".