The greatest leaders have humility. A good leader is a humble leader. A good leader listens to people, gets other inputs, admits when they're wrong… and that boils down to humility; it's the single most important characteristic that I see in leaders.

Research shows that individuals who are slower to habituate to negative events tend to be more prone to depression. This ability to habituate is crucial for moving forward.

The rich get richer, and the poor get poorer, and the market doesn't even things out. It takes massive state intervention through public services, health services, social housing and income redistribution to even begin to equalise or reduce inequality.

All we can control in this life is our dedication, our self-belief, our determination. I can guarantee you, I will always have that, and that's my legacy. That's what I want to leave as a gift to my kids – the message that they should never give up, never have regrets, to give everything.

Songs are like a cleanse for the nervous system. I put on She's Always a Woman by Billy Joel and I just suddenly felt psychologically lifted. There's something in the essence of this song… it's not just beats and energy. It felt this song was filled with beauty, mystery, and love.

Islamism is an ideology that is imported from Europe in the 1930s onwards. It was fascism and communism that were imported by Qutb, who became the ideologue of modern day Islamism. He wrote a book called 'milestones' – equivalent (and sharing many similarities) to Das Kapital or Mein Kampf.

Early stage investing is very difficult and financially risky meaning that a lot of what we invest in won't work. A lot of what we do is, in effect, pilots to see if individual projects or funds can generate some positive return.

Read a lot. Never accept current standards. Always improve yourself. And remember, you always meet twice in life.

Every failure has lessons it can give us- and knowing failure is possible and monitoring where you expect it to occur, allows you to divert your attention to the necessary observations and actions to carry out the positive.

There's a very strong relationship between depravation and drug use in many western cultures. It's not the sole reason- you do get the rich and mega-privileged using drugs… You can't go shouting from the rooftops that it's all about depravation… a lot of it is… but there are other social factors, personal factors, genetic factors and economic factors – all mixed into the pot.

They should be stress-testing their balance sheets and portfolios under a range of negative scenarios, and have sufficient capital and liquidity to withstand scenarios that are far out on the tail of the distribution of possible outcomes. The stress tests should account for potential bubbles in global asset markets.

I don't really like the term entrepreneur because I think to some it implies that you start businesses for the sake of starting businesses. My view is this. If there's something you want to see in the world that doesn't exist, go build that thing. If that means you have to build a company? so be it.