S1, E2: With contributions from Tobias Menzies, Peter Doherty, Piotr Anderszewski and Sir David Attenborough, Simon tells the story of how the romantics - fuelled by the failures of the French Revolution and horrors of the industrial revolution - retreated from the tragic uproar of public life to take a journey into their own minds. Here, long before the invention of modern psychology, they discovered the subconscious, something that would have a profound effect on our modern world.