David Sedley: Plato’s Theory of Forms (Royal Institute of Philosophy) 

Part of the Royal Institute of Philosophy's lecture series: The History of Philosophy.
The aim of this lecture is to explain the meaning of Plato’s most celebrated doctrine, starting with its origins in the ethical inquiries of his master Socrates, and proceeding to its pivotal role in epistemology and ontology.
Filmed on 12th December, 2014