In terms of having views and being prepared to express them, yes, I think New Zealand's had a leadership role in a lot of things.

In terms of protecting ourselves, the main issues are around how do we protect our borders [from illegal migrants and livestock and plant diseases], how do we protect our fisheries?

Innovation applied across the board of development is having a huge impact, and can have more. All sorts of technology can provide shortcuts, can overcome obstacles which once seemed insuperable.

Grounded in international human rights, gender equality doesn’t just improve the lives of individual women, girls, and their families; it makes economic sense, strengthens democracy, and enables long-term sustainable progress.

I felt really compromised. I think legal marriage is unnecessary and I would not have formalised the relationship [with husband Peter Davis] except for going into Parliament. I have always railed against it privately.

I think the penny has dropped that the All Blacks aren't automatically just going to be the best team in the world.

Any serious shift towards more sustainable societies has to include gender equality.