It also explains why, for example, you recognize your car both when it's very dirty and very clean, and why you can remember where you parked your car today even though you had a different space yesterday.

CNN: How memories form, fade, and persist over time

Regulators, too, should remember that no one bank model offers a clean solution to the problem of systemic risk.

ECONOMIST: Bank strategies

At the launch of a competition to design it, I specifically remember it becoming about providing a green, clean bus to try and solve the air pollution crisis in London.

BBC: The shifting arguments for London's New Bus

This is the nation that will lead the clean energy economy of tomorrow, so long as all of us remember what we have achieved in the past and we use that to inspire us to achieve even more in the future.

WHITEHOUSE: President Obama Pushes Clean Energy

"But you have to remember that the hurricane generates extra activity too, in terms of the clean-up and rebuilding, " he told the BBC.

BBC: Sandy: Damage estimated at up to $20bn