The test of leadership for David Cameron was actua...

The biggest opportunity in 2013 is in Africa. It has seven out of the ten fastest-growing economies in the world. In Nigeria alone there are 100 million people with mobile phones. In total, 300 million Africans - five times the population of Britain - are in the middle class.

The problems that the world faces - from nuclear proliferation to climate change - can't be tackled by the West alone. They need a coalition of not just West and East, but they need a coalition of Christian and Jew and Muslim.

My memories are of my dad taking me to football on Saturday mornings, and my mum taking me swimming. Those are the things I remember from my childhood, not sitting around the table debating capitalism and the profit squeeze.

Leadership is the other side of the coin of loneliness, and he who is a leader must always act alone. And acting alone, accept everything alone.

A leader does not deserve the name unless he is willing occasionally to stand alone.

But no nation can base its survival and development on luck and prayers alone while its leadership fritters away every available opportunity for success and concrete achievement.

Outstanding leaders go out of their way to boost the self-esteem of their personnel. If people believe in themselves, it's amazing what they can accomplish.