Huge sums are invested globally in medical research and development - and with good reason.

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

Courses can, and should, incorporate the excitement and fun of programming games, apps or even real digital devices.

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.

Young people who were relaxed about posting every detail of their life on Facebook become a lot less relaxed when they realise just how transparent their life has become to future employers.

Over 5,000 years, states have made surprisingly consistent claims about their duties. They have promised to protect people from threats; promote their welfare; deliver justice and also, perhaps less obviously, uphold truth - originally truths about the cosmos, and more recently truths drawn from reason and knowledge.

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.