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.

Unless we change direction, models show that the profit of the entire consumer goods sector could be wiped out by 2050.

My biggest fear is that I become useless or less useful by not being up to date - be it with technology, changing consumers, changing global situations. You continuously have to have a little level of paranoia that forces you to set the bar higher every day.

My biggest fear is that we [Unilever company] at one point in time will not be able to attract the best and brightest [workers]. I don't worry so much about the business, the strategy. If we can continue to attract the best, I know they will ultimately figure out how to run the company in a very tough environment.

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.

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

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