Until you have looked in depth at the system and found out where women in Egypt are not being cut through female genital mutilation, or where kids in Vietnam are not malnourished, or where hospitals in America are getting rid of the superbugs anyway - unless you have that level of curiosity about what's going on without you, you will always come in with your great new recipe and just ignore what's going on, and that will make you much less effective at what you're trying to achieve.

You have a huge number of people who spend their time writing papers which show that migrants pay more to the country than they take out in benefits, and they say, "Why don't you approve of migration? Why don't you open up borders?" They're not able to empathize with how people feel about migration.

There's a diversion between economic reality - integration, global village, everybody depending on everybody else - and cultural reality, which is people feeling invaded, undermined, threatened, wanting to have "stand-your-ground" legislation all over the place. It's alarming because at the moment, the fear is outweighing the benefits, and that's partially because the benefits have been so unequally distributed that lots of people don't feel better off. They feel threatened, angry and despairing.

People are saying, "I have a right to my opinion. Don't just keep condescending, telling me what to think." There's something slightly liberating about that, but also it lends itself to being taken advantage of, because in come the demagogues.

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

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

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