Education is a human right with immense power to transform. On its foundation rest the cornerstones of freedom democracy and sustainable human development.

I still indulge in a glass of wine or chocolate - treats are mandatory. Without deviating from the day-to-day healthy diet once in a while it wouldn't be sustainable for me and that's what I wanted: an approach to eating to last my entire life.

A safe and nutritionally adequate diet is a basic individual right and an essential condition for sustainable development especially in developing countries.

We have got to change our ethics and our financial system and our whole way of understanding the world. It has to be a world in which people live rather than die a sustainable world. It could be great.

In the coming years if not sooner social media will become a powerful tool that consumers will aggressively use to influence business attitudes and force companies into greater social responsibility - and I suggest move us towards a more sustainable practice of capitalism.

The British political system and the whole clapped out Westminster architecture and the language that we use about politics it's completely unsustainable. You either decide to be part of that transition to do something different. Or you cling to old certainties.