It is unacceptable that more than 1 billion people are hungry every day while another billion are obese.

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.

When I interview people, I look at their values. I always say that the best chance of success is if the individual's values are aligned with the corporate values.

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.

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.

Leadership is not just about giving energy ... it's unleashing other people's energy.