Haji Ali taught me to share three cups of tea, to slow down and make building relationships as important as building projects. He taught me that I had more to learn from the people I work with than I could ever hope to teach them.

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'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?

Certainly I am sometimes afraid, but my hope is greater than my fear, and the biggest enemy we all face is ignorance which breeds hatred, whether it be in America, or Afghanistan, or anywhere. We owe it to our children that we may give them all a legacy of peace, but it will take courage and compassion.

Yes, I first visited Korphe village, Braldu valley, Baltistan, Pakistan, after failing to summit K2 in 1993, and met Haji Ali, a long time dear mentor and friend. My second visit to Korphe was in 19

Once you educate the boys, they tend to leave the villages and go search for work in the cities, but the girls stay home, become leaders in the community, and pass on what they've learned. If you really want to change a culture, to empower women, improve basic hygiene and health care, and fight high rates of infant mortality, the answer is to educate girls.

According to UNESCO: there are over 154 million children in the world deprived of education due to poverty, slavery, racism, religious extremism, gender discrimination, and geographical isolation. The cost to educate a child in the third world is about $ 1 per month per child. To achieve global literacy, the investment would be $ 8 billion per year for 15 years.