To be effective at selling ideas, at being a lobbyist, influencing other people, you have to be very sure of yourself.

We should look at how "the enemy" - people that you wouldn't necessarily agree with - have done change and see whether there's bits in there that we could learn from.

I have to be sure of myself - in a conditional way, always being open to the possibility that I'm wrong.

Activists can get very preachy about things. It's more about understanding people's own experiences and tapping into them.

In any system, there will be change happening without you.

There's a tendency for people who believe passionately in something to be so convinced of their rightness that if they just repeat themselves a lot at the person, that will convince them. And that hasn't worked on things like immigration or trade deals.

When you get talking to people in positions of power, you find that often their worldview is framed either in terms of their disciplinary studies at university and/or the country where they first got interest in development.