If you've got to my age, you've probably had your heart broken many times. So it's not that difficult to unpack a bit of grief from some little corner of your heart and cry over it.

We need men and women to sit down and talk to each other about sex honestly and openly. That would help us fight Aids so immediately. But our lack of communication is hugely problematic.

I don't mean being famous is a perk, because one knows that it's not necessarily a perk, but there are certain perks to being well-known and respected in one's field. Public perks. Like, I don't know, general friendliness and willingness to please, just to point out two.

I think it's [the AIDS fight] the most important and most pressing one - I think it's a global emergency and I think in a way we all have to address it and engage with it because I think it's the biggest threat to the human race that we have ever faced.

You can't be a great mum and work the whole time necessarily; those two things aren't ideal. We have an awful lot to work on and to debate about in relation to our working lives, because it isn't working for a lot of people, particularly for a lot of women.

It's not my fault that there is this gap between rich and poor, it is the fault of governments. I want a different world. One where I don't wake up thinking I'm so lucky to be able to feed my daughter.

[Fighting Climate Change] is important for every single person on the planet, which is why it has to be the greatest grassroots movement of all time. This is the battle of our lives. We're fighting for our children.