"

 Note to self 

C. S. Lewis delivered a series of two lectures to an audience of men of science at the Zoological Laboratory of Cambridge University on 17–18 July 1956. The notes for these were discovered after his death by his secretary, Walter Hooper, and first published under the title ""Imagination and Thought in the Middle Ages"" in Studies in Medieval and Renaissance Literature (Cambridge: Cambridge University Press, 1966 [2007])."