The most dynamic cities have always been immersed in the critical innovations of their time.

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

There is incredible potential for digital technology in and beyond the classroom, but it is vital to rethink how learning is organised if we are to reap the rewards.

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

Before the Second World War, L'Oreal in France was an active supporter of the French fascists. The cosmetic group's founder Eugene Schueller was an active member of the 'Cagoule' group, committed to the violent overthrow of the Third Republic, and hosted meetings at Oreal headquarters.

The biggest barrier to dealing with climate change is us: our own attachment to habits that are hard to shift, and our great ability to park or ignore uncomfortable choices.

The wrongful arrest of tens of thousands of British Muslims after the September 11 attacks can be explained by the very poor intelligence the police had, and, just possibly, excused by the fact that a terrorist action in Britain linked to British Muslims would have been hugely damaging.