Many companies are disappointing the citizens of this world by manipulating labor rates, putting horse meat instead of beef out there, or thinking it's totally acceptable to make a T-shirt from a collapsing factory. Increasingly, people don't want to work for these companies, and consumers don't want to buy from them.

What is success? I think the most important thing is to achieve what you set out to achieve. Just being a CEO in itself is not success. I would not relate success to a title or a position. My career has had a level of serendipity all along. I've never planned anything out more than a few years.

Imagine all the food mankind has produced over the past 8,000 years. Now consider that we need to produce that same amount again — but in just the next 40 years if we are to feed our growing and hungry world.

We cannot choose between [economic] growth and sustainability - we must have both

People at my level [Unilever CEO] shouldn't be motivated by salary. If you paid me double, I'm not going to work twice as much, because I'm already probably maximizing my time available. And would it change the way I do things? Not really. So, yes, I am fortunate, and I am ashamed about the amount of money I earn.

The very essence of capitalism is under threat as business is now seen as a personal wealth accumulator. We have to bring this world back to sanity and put the greater good ahead of self-interest. We need to fight very hard to create an environment out there that is more long term focussed and move away from short termism.

If you work at an insurance company that sells premiums you wouldn't even sell to your mother, how happy would you feel to work there? It's going to eat you up. It might last a few years, but it doesn't attract the best people, and it certainly doesn't create the energy and engagement you need to be a long-term performing company.