I want to take African rhythm and put it into classical music, European jazz, and symphonies. I want people to come together from all over the place, through music. That's my legacy.

We estimate that between 2010 and 2015, there will be 150million new Chinese entering the middle-class. That's a middle-class which increasingly buys diamonds as a gift of love and as a memento of stature.

Participants in each market, faced with threats, had to put competitive behaviour aside and realise the strength of collaboration.

Numerous studies including recent ones from Stanford and Harvard Universities show that young girls, by the age of six, in the U.S. feel they are less intellectually capable than boys. Why? Because when they open a history book, they are predominantly exposed to male innovators.

I worry that we haven't checked our interstellar mailbox, and so we've missed the letter which contained the recipe for our salvation. Perhaps another civilisation sent us a message with the key to our own survival. Physical objects have a huge advantage over listening for signals – you can encode a lot more into a physical object.