One of the things that people complain about is loneliness, disconnectedness. If you live in a society where your life is rarely threatened and most of your relationships are more on an economic exchange basis, then this could leave people feeling less connected.

I try to jog in every city I visit, and I particularly enjoy harbour-front paths that let me ogle big ships, railroad bridges and the ruins of factories and warehouses.

Effective education may also require co-opting old faculties to deal with new demands. . . Because much of the content of education is not cognitively natural, the process of mastering it may not always be easy and pleasant, notwithstanding the mantra that learning is fun.

Parents provide their children with genes as well as an environment, so the fact that talkative parents have kids with good language skills could simply mean that and that the same genes that make parents talkative make children articulate.

It is true that raids and battles killed a tiny percentage of the numbers that die in modern warfare. But in tribal violence, the clashes are more frequent, the percentage of men in the population who fight is greater, and the rates of death per battle are higher.

Fiction is empathy technology.

Tom Hanks, who starred in 'The Da Vinci Code,' turns out to be related to a number of the historic characters that feature in 'The Da Vinci Code,' including William the Conqueror and Shakespeare.