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.

Adelaide is becoming a hub for higher education.

Spreading an idea is hard work.

Governments that invest billions in new hardware still find it hard to accept that they might benefit just as much from systematic innovation in such things as child development or cutting crime.

Many of the greatest composers and musicians do their best work in extreme confinement but we are seeing it in other fields - uses of technology to link people together in networks to solve problems and almost certainly we'll get better ideas than we would from them just doing it on their own.

Learning isn't something you should only do solo.

I'm not saying [economic] growth is wrong, but throughout the years of growth, many things didn't get better. ... If you look at America, the proportion of Americans with no one to talk to about important things went up from a tenth to a quarter.