How do we achieve social harmony? For Chinese philosopher Confucius this was through recognizing hierarchies and honouring our elders.

Given a free market, individuals making self-interested decisions will unwittingly create an effective economic system that’s in the public interest. So thought Adam Smith.

Is Democracy such a good way of deciding how to run a state? Plato said ‘no’.

Could you change your belief if threatened with torture? Or would you merely be saying that you’d changed, when deep down you still held your original belief?