Climate change is a consequence of the build up of greenhouse gases over the past 200 years in the atmosphere, and virtually all these emissions came from the rich countries.
Britain must lead in Europe to intensify the fight against global terrorism and make our country safer.
Globalisation feels like a runaway train, out of control.
Every country is going to have to face up to globalisation, but Scotland has got a unique capacity because of its history as part of a multinational state to help us deal with that problem.
I believe there is a moral sense and a global ethic that commands attention from people of every religion and every faith, and people of no faith. But I think what's new is that we now have the capacity to communicate instantaneously across frontiers right across the world.
When you've got a society that is diverse, what happens is for a time, the issue is integrating your minorities into that society.
I am not going to the House of Lords. Never. That's not who I am. That's not where I am.
In 2005 we have a once in a generation opportunity to deliver a modern Marshall plan for the developing world.
I'm a father; that's what matters most. Nothing matters more.
A woman said to me, 'You're better than your successor.' She then said she's lived under 10 prime ministers, and each was worse than the last. That put me in my place.
We need quantitative assessments of the success of education. We need certification and qualifications both for teachers and for pupils. It is not a choice between quantity and quality, between access and excellence. Both of these will happen together if people really do believe in the importance of education to change lives.
Collective European Union action could mean no hiding places for evaders, no safe haven for tax avoiders, and no treasure islands for money launderers.
The British economy of the future must be built not on the shifting sands of boom and bust, but on the bedrock of prudent and wise economic management for the long term. It is only these firm foundations that we can raise Britain's underlying economic performance.
We are being tough in saying it is a duty on the unemployed in future not only to be available for work - and not to shirk work - but also to get the skills for work. That is a new duty we are introducing.
Why is playing football in Europe considered the pinnacle of our game, yet in other spheres of life, that same phrase - 'being in Europe' - is dismissed with suspicion?
The motto of the old order in the City of London was, 'My word is my bond,' but the financial crisis revealed a culture quite alien to that heritage. The stewards of people's money were revealed to have been speculators with it.
I never subscribed to what you might call the neo-Conservative position that somehow, at the barrel of a gun, overnight, liberty and democracy could be conjured up.
The best way of realising our high ideals is to show that we have an alternative in government that is credible, that is radical, and is electable - is neither a pale imitation of what the Tories offer nor is it the route to being a party of permanent protest rather than a party of government.
It is thanks to men and women who were totally committed to fighting fascism, people like Alan Turing, that the horrors of the Holocaust and of total war are part of Europe's history and not Europe's present.
What is happened in the years since the Second World War is not a temporary truce. It is not simply a ceasefire. Instead of battling with weapons and armaments, people battle only with arguments and ideas.