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.

The post-Second World War simple system of social democracy and organized labour has fragmented massively, but just because people aren't organized in workplace trade unions doesn't mean they aren't in associations with other people - work-based, place-based, culture-based, sport-based, faith-based - there's a bit of an old rainbow coalition argument.

Floundering around, learning by doing but also by failing, is not only good but inevitable.

The magic formula is there is no magic formula.

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

I sound like a church nut, but look at the role of the churches in the civil rights movement in the States. People are brought together in other ways that can become drivers of change.

I see [activists] getting really angry that people won't just do what the evidence tells them, and that's not very helpful. You need to actually think why that is.