The greatest adventure that any of us can take is answering these questions for ourselves. This isn't deep, dark, conversation, it's normal conversation. The wisest, coolest prophets out there… people like the Dalai Lama… they're full of joy.

Inequality is strong because wealth goes to wealth. The economic and political organisations of the world are such that the negotiation power of the poor is minimal if not zero. There are no trade-unions, no capacity to negotiate… even in the US, Europe and elsewhere… the level of concentration of wealth is bigger than ever.

Taking that first step is your biggest competitive advantage; most people won't do it.

Response to, and resolution of what lay behind the merciless attack, should theoretically still be for peaceful resolution in accordance with the UN Charter.

One of the unique aspects of a prize is that when you put a dollar up in a prize purse, you're incentivising teams around the world to spend many times that dollar in pursuit of the competition. You are leveraging dollars in a completely different way- in a philanthropic pursuit.

I should say right away that I am very much a cryptocurrency sceptic. My judgement is that the dangers of cryptocurrencies do not outweigh the benefits. Cryptocurrency can interfere with governments' ability to fight recessions with monetary policy. When people are using privately created money rather than ordinary money, the money supply is beyond the government's control, and monetary policy can no longer be conducted.

The phrase 'I don't know' serves as both an invitation and a challenge, a beckoning call to delve into the unknown and piece together the enigmatic puzzle of knowledge. Science, at its core, thrives not on regurgitating established facts but on the exhilaration of unearthing new discoveries.

It's the disadvantages that offer a more fertile ground for learning, albeit for a smaller cohort. The depth of learning and engagement derived from tackling difficulties is substantially richer compared to that gleaned from facing advantages.

Entrepreneurship is about taking risks and having the audacity to commit and persevere through all the obstacles and hurdles we have to overcome.

For me it is extremely important that commercial interests and social benefits are not mutually exclusive, but that they can complement each other wonderfully so I always look out for products that are innovative, forward-thinking and offer a true value for society.

This is a race to the future, a future powered by renewable energy sources and underpinned by efficient energy use. The winning nations, corporation and citizens will reap enormous benefits in terms of jobs, sustainable economic development, energy security and vastly improved local environments.

This has been a heart-wrenching day, and I will never forget the destruction and suffering that I have witnessed. I have visited the scenes of many natural disasters around the world, but nothing like this. The scale is so large: so many people, in so many places, in so much need.