The most important innovators often don't need any technologies - just imagination and acute sensitivity to people's needs.

Spreading an idea is hard work.

With a fractured sense of self, we come to depend on what people feed back to us - often mediated through social networks - not what we are. We have complex identities but may become less able to act as a subject - confident in what we really are.

Teenagers learn best by doing things, they learn best in teams and they learn best by doing things for real - all the opposite of what mainstream schooling actually does.

Understanding capitalism is in some ways simple. At its best, capitalism rewards creators, makers and providers: the people and firms that create valuable things for others, like imaginative technologies and good food, cars and drugs.

All of nationalism can be understood as a kind of collective narcissism.

Learning isn't something you should only do solo.