Your body was built to handle stress, making it one of your most high-performing functions. However, it's not always productive to view stress as something that needs to be mitigated.

It's fair to say that life felt more secure 40 years ago. You felt safer in your home, on the streets, in school, you just felt safer. If people suggest that humanity is becoming less 'human' – it's because we've allowed civilized conduct to deteriorate and that's what I've fought against for my entire professional career.

If you look at the balance sheets of Fortune 500 companies 50 years ago and today, you can see that 50 years ago, 80% of the value was physical stuff. Today, more than 85% of the value consists of intangibles. Companies must become so much more now that their value comes from their ability to inspire, drive and organise human beings.

The standard models were formulated through a process that started well before computers were in place, and I would say it's undergone a certain lock-in. Once you start going down that path, it's hard to break out of it to another path. As a result, economics is stuck. It's not even that the existing models are wrong, they're just very limited in what they can do, and mainstream economists have gotten very locked in to using those models – and only those models.

Despite my anxiety and the constraints that sometimes hold us back, acting connects us to something larger. It's a business, sure, but there's a steep thrill in the moments of performance. The thrill of feeling truly alive, of connecting deeply with someone else, even in imaginary circumstances. That thrill of creation is my guiding star.

You have to show 100% genuine emotion and personality through everything you do and allow that to connect to people. You cannot keep things inside because you think people won't accept you, or will think you're strange; just let your freak flag fly.

Either as a startup founder or a venture capital investor, you should not care about what others believe to be exciting or overhyped. Do your own primary research and make up your own mind.

I was an accidental witness to history, it wasn't technology that intrigued me; but rather the question about who these human beings were… who was this hidden tribe that had the power to change our lives?

The camera doesn't lie, but the photographer does. And that's the beauty of it. Photography is about interpretation, it's about your point of view, it's about how you see the world.

We are a dark-deprived society in this modern era, and we need darkness for the release of melatonin for healthy sleep. Without melatonin, we will not sleep sufficiently.

Politically and practically, the Euro Zone nations cannot be seen to bail-out Greece. Not only would this set a potentially dangerous precedent, but it could also affect the overall financial stability of the system itself.

That confidence and perseverance can sometimes lead you to keep charging ahead headfirst, when what's really needed is a pause and a course adjustment. I think that's the challenge when strengths get overused.