Hayek had a long-standing and close friendship with philosopher of science Karl Popper, also from Vienna. In a letter to Hayek in 1944, Popper stated, "I think I have learnt more from you than from any other living thinker, except perhaps Alfred Tarski." (See Hacohen, 2000). Popper dedicated his Conjectures and Refutations to Hayek. For his part, Hayek dedicated a collection of papers, Studies in Philosophy, Politics, and Economics, to Popper and, in 1982, said that "ever since his Logik der Forschung first came out in 1934, I have been a complete adherent to his general theory of methodology". Popper also participated in the inaugural meeting of the Mont Pelerin Society. Their friendship and mutual admiration, however, do not change the fact that there are important differences between their ideas.
Which fellow Vienna native was Hayek friends with? Who is the only exception from whom Hayek claims to have learned more than he did from Popper? Hayek dedicated many of his papers to Popper based on a dedication Popper made to him in which of his work? Which of Popper's works was the first to grasp Hayek's attention? Popper was present for which notable Mont Pelerin Society event?