Named for British philosopher John Locke, the Locke Lectures are the world's most prestigious lectures in philosophy, and are among the world's most prestigious academic lectures.
They were established in 1950 by the bequest of Henry Wilde.
The first lecture series was offered to Ludwig Wittgenstein, who eventually declined.
He felt uncomfortable giving formal lectures where the audience would not be asking or answering questions.
Since 2001, the lecture notes have been made available electronically.