When ordinary human beings perform extraordinary acts of generosity, endurance or compassion, we are all made richer by their example. Like the rivers that flow out of the Karakoram and the Hindu Kush, the inspiration they generate washes down to the rest of us. It waters everyone's fields.

I've actually spent about half of my life overseas in the third world. I grew up in Tanzania, East Africa, and later lived in South-West Asia. In general, everywhere I go, I am treated with great respect and hospitality, but I need to be sensitive to cultural, tribal and ethical customs of the local people. In this modern era of technology, I think we forget that the most important thing when traveling is to listen and learn, and establish relationship, and not be hidden behind technology like Goretex, emails, satellite phones, and insulated from the people around you.

I decided in '96 to dedicate my life to mostly promoting literacy and education for girls in rural Pakistan and Afghanistan.

I'm no military expert, and these figures might not be exactly right,' I said. 'But as best I can tell, we've launched 114 Tomahawk cruise missiles into Afghanistan so far. Now take the cost of one of those missiles, tipped with a Raytheon guidance system, which I think is about $840,000. For that much money, you could build dozens of schools that could provide tens of thousands of students with a balanced, non extremist education over the course of a generation. Which do you think will make us more secure?

Trust in Allah, but tie up your camel.' Sign in Skardu

If you look at the 9/11 highjackers, certainly they were educated, some even had university degrees, but nobody really checked their mothers, who were nearly all illiterate.

You have to attack the source of your enemy’s strength. In America’s case, that’s not Osama or Saddam or anyone else. The enemy is ignorance. The only way to defeat it is to build relationships with those people, to draw them into the modern world with education and business. Otherwise the fight will go on forever.