"The choice is really quite simple. In favour of staying, it is in Britain’s geo-strategic interests to be pretty intimately engaged in the doings of a continent that has a grim 20th-century history, and whose agonies have caused millions of Britons to lose their lives. History shows that they need us. Leaving would be widely read as a very negative signal for Europe. It would dismay some of our closest friends, not least the eastern Europeans for whom the EU has been a force for good: stability, openness, and prosperity. It is also true that the single market is of considerable value to many UK companies and consumers, and that leaving would cause at least some business uncertainty, while embroiling the Government for several years in a fiddly process of negotiating new arrangements, so diverting energy from the real problems of this country – low skills, low social mobility, low investment etc – that have nothing to do with Europe."