That's a central part of philosophy, of ethics. What do I owe to strangers? What do I owe to my family? What is it to live a good life? Those are questions which we face as individuals.

Sometimes we know the best thing to do, but fail to do it. New year's resolutions are often like that. We make resolutions because we know it would be better for us to lose weight, or get fit, or spend more time with our children. The problem is that a resolution is generally easier to break than it is to keep.

When diamonds' role in fuelling violent conflict in Africa gained worldwide attention, the diamond industry established the Kimberley process in order to keep ""blood diamonds"" out of international trade.

I'm not overly alarmist about it, but I do think there are some worrying signs, like the growing accumulation of wealth by a very small proportion of the population, plus elections in the US are much more dominated by money than anywhere else calling itself a democracy.

Winning an Oscar ain't about performance. There's a lot of politics involved.

The people I used to have around me from Nashville was showing love to the Cash Money clique on the strength of Buck trying to make it; making sure Buck gets to where he gots to go.

I've never worked to make money. I understand we've got to eat and all that, but I never said I want to be a multimillionaire or a billionaire. To me, that's of no significance. I work to have the accomplishment.

No-one works for money alone and tapping into what people want from their careers and what they have to offer is essential.