There's no point in just hankering for the big trade unions of the 1950s or '60s.

The magic formula is there is no magic formula.

In the end, that's a blind alley - we have to get back to being able to think on our feet and react.

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.

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

Lots of people in the open system are very determined to try and strengthen evidence-based policy.

The death of deference seems to be general at the moment, so everybody has to earn their reputation and trust all over again. You don't just get it by virtue of being a professor or a politician or anybody else.