I have always thought that if you are abducted for a week, 2 weeks, even a month- you don't know what abduction is. It's only after a certain time that you understand the weight of abduction.

Many people assume that they understand what stress truly is. Yet, I believe our collective definition might be somewhat misguided. Hans Selye, often regarded as the pioneer in stress research, characterized it as the body's non-specific response to any demand. Rather than categorizing stress as either good or bad, we should understand it as the body's reaction to any non-specific challenge.

I don't feed stomachs, I feed minds. Education is the only weapon capable of transforming a community. Imagine… I was an illiterate 17-year-old boy, and I can do this. Imagine what we can do if we empower everyone.

If you lose your ego, you lose the thread of that narrative you call your Self…humans, however, can't live very long without some sense of a continuing story.

The fact that you and I are alive is against stupendous odds. One day we will die, and that's sad, but there are people who will never die because they were never born. We're the lucky ones, we get to die.

I am not someone who puts a lot of pressure on myself. I love a challenge and live for the big stage of an Olympic Games or World Championships. Some people get nervous for the big events but I look forward to them.

While participatory culture can create a Wikipedia, it is not likely to produce something like the Star Wars franchise. I don't think that's a problem, because I don't think we have to choose between participatory and top-down culture – both will thrive.

Endurance is mind over body. It's about tapping into something within us that allows us to push further than we ever thought possible, especially at our weakest moments.

There's a culture in Silicon Valley that believes that you should be obsessive and not be able to think about anything else other than your business. You shouldn't have kids… friends… just your company as a vehicle to make millions of dollars. That's the kind of founder that many investors want to back, but we need to kick those people out.

Culture is much bigger than that. Culture goes beyond values. I define culture is three primary parts. The first part is behaviour. It's the behaviours of your employees that get embedded into all the processes we are already doing. The second part is processes. The third piece is practices.

My mother Bess taught me very early on to take risks and just go for it. I don't like to waste people's time, and I don't like my time wasted because time is the only thing you can't get back.

The moment you send Billy Connolly, Lenny Henry and Victoria Wood out somewhere to make an appeal – they are representatives of 'normal people' perhaps in some ways more than pop stars.... Comedians are a kind of humdrum kind of celebrity, and as such I think they're very good at evoking empathy.