David Gordon recalls Hayek in the classroom teaching the philosophy of social science to a room full of undergraduates at UCLA in 1969. Read the whole thing, but here’s a teaser:
Hayek delivered his lectures seated at a desk. He never used notes, but his lectures could easily be printed verbatim. When a student asked a question, Hayek would pause and then deliver an answer in language as equally exact as his lectures. He would sometimes twist his head in order to hear the question better. He said that he found it an interesting historical coincidence that he was deaf in the left ear, and Karl Marx had been deaf in the right ear.