People don't know what it is that they're negotiating over… If you don't, then it's hard to know if you've gotten a bad deal, a fair deal, or a great deal! That's going to lead us to the negotiation pie, and with the negotiation pie comes the extra value that negotiators create by coming together.

The American general felt that if we confronted the Russians with a determined show of force, they would probably back down. And you know what? He was probably right; but what does probably mean? If it's 90% then there was a 10% chance he was wrong.

If you don't give people legal routes to hope, they will find illegal routes and put themselves in the hands of criminals. That's the reality. We have record numbers of refugees and displaced people, and so for criminal gangs this is a business which is at scale.

Genius is (possibly) the presence of more- or more closely packed- neurons. I once held a chunk of Einstein's brain, the scientist who was dissecting and analysing it told me the neurons were closer together. We don't really know if that makes thinking faster… but when I sit with true brilliant people and watch them have conversations, they seem to have the ability to recall important bits of information, put the puzzles together, and see patterns faster.

Until the Wall Street Crash of 1929, the economy had been measured in tonnes of grain and steel, and because of the crash- economists and politicians decided they wanted some grip over the scale of output of the economy- so they turned to a brilliant young scientist called Simon Kuznets and asked him how they should be measuring economic output. His answer was published in 1930s- he figured out a way to add-up all the tonnes of grains and steel and create a national income figure. He gave the caveat that it would scarcely be taken as the measure of welfare of a nation because it didn't include all the value created in a community, all the unpaid caring work at home, and only measured what was sold- not what was used-up!