The Afghan government is much better informed, much more intrusive and ambitious than I had guessed. There are amazing craftsmen in Kabul but few designers and wage rates are astonishingly high - which is a problem when trying to support and promote Afghan craft exports. The community in Murad Khani in the old city - who we are helping to restore their area - have been the best part so far - eccentric, led by a champion wrestler, determined, proud and courageous.

The Afghan government is much better informed, much more intrusive and ambitious than I had guessed. There are amazing craftsmen in Kabul but few designers and wage rates are astonishingly high - which is a problem when trying to support and promote Afghan craft exports. The community in Murad Khani in the old city - who we are helping to restore their area - have been the best part so far - eccentric, led by a champion wrestler, determined, proud and courageous.

I found incredible kindness, dignity and hospitality in both Iraq and Afghanistan - am only alive because of it - the most worthwhile lesson of a twenty month walk to these countries was a deepening appreciation of the kindness of strangers.

This idea that failure is not an option: It makes failure invisible, inconceivable and inevitable.

If democracy is to be rebuilt … it is necessary not just for the public to learn to trust their politicians, but for the politicians to learn to trust the public.

I'd like to come back to the West eventually. In the end abroad I am always a stranger, active politics in particular is not accessible to me and although people are generous, I can never be on the inside of a culture that relies a great deal on the private space and the family.

Change can only come from local citizens and politicians - it cannot be imposed by well-meaning foreigners - not least because a society like Afghanistan or Iraq is suspicious of outsiders and often resistant to change. I am not going to get drawn into the ethics of intervening in other countries. My concern is the practical question. Can you actually achieve change in this way? My guess is we can stop wars sometimes as in the Balkans and topple regimes - but that the other stuff - such as corruption is not within our power to effect and alter.