DESCRIPTION:
Do you draw conclusions from how things are to think about how things should be? There might be a gap in your reasoning. Read by Harry Shearer. Scripted by Nigel Warburton.

From the BBC Radio 4 series - A History of Ideas. http://www.bbc.co.uk/programmes/b04bwydw

This project was possible in partnership with The Open University and the animations were created by Cognitive.