Certainly we've seen the enormous changes across the whole of the Middle East. The democratic genie is out of the bottle.

I am not running as Son of Margaret Thatcher. I have my own priorities and my own programmes.

When our backs are against the wall, we must turn around and march forward.

I would rather go while I am being urged to stay, than to stay beyond the time when I should go.

I thought I could do something different from any Conservative prime minister before me. But I couldn't.

Well what would happen is that if Greece defaulted and couldn't pay its debts, all the Greek bonds that are held in other banking systems across Western Europe would suddenly have no value. You could as a knock-on effect create a banking crisis in Western Europe.

You don't forget crises and neither does the Queen.