We can't afford to waste time going slow on changing our party so now is not the time to put our foot on the brake. Now is the time to press on the accelerator.

Corruption is one of the greatest enemies of progress in our time. It is the cancer at the heart of so many of the world's problems.

The prime minister says he has a vision for change, well put that to the people of the country.

People are increasingly frustrated that decisions taken further and further away from them mean their living standards are slashed through enforced austerity or their taxes are used to bail out governments on the other side of the continent.

Far from being a drag on growth, making our energy sources more sustainable, our energy consumption more efficient, and our economy more resilient to energy price shocks - those things are a vital part of the growth and wealth that we need

Britain could make her own way in the world, outside the EU, if we chose to do so. So could any other Member State. But the question we will have to ask ourselves is this: is that the very best future for our country? We will have to weigh carefully where our true national interest lies.

The next Prime Minister walking through that door will be me or Labour Party leader Ed Miliband, you can choose an economy that grows, that creates jobs, that generates the money to ensure a properly funded and improving National Health Service ... and a government that will cut taxes for 30 million hard-working people ... or you can choose the economic chaos of Ed Miliband's Britain.