I guess that's been my biggest quality – to understand what customer's want, 3 or 4 years ahead of time. That's more or less probably my biggest quality as an entrepreneur.

Rather than politicising our cultural challenges, we have to allow people to feel comfortable about their culture and about who they are, and to accept each other as equals.

If you look at the notional value of trading on our exchanges in any given year, they range from $600-700 trillion to a quadrillion dollars in total value. People can use these markets very effectively, not just for bona-fide risk hedging and transfer and risk management but also for asset allocation, portfolio management and trading strategies as well.

We go to war not because we ignore the costs, but because we know there are costs, but we are willing to pay those costs because we get something from the war which we wouldn't get otherwise.

Until about 70,000 years ago, humans were just another kind of animal. They weren't particularly important. Their impact on the world was not greater than that of jellyfish, fireflies, or woodpeckers. However, 70,000 years ago humans evolved new cognitive abilities that turned them into the most powerful force on the planet.