We could choose to leave as a country split and an economy disjointed, struggling to make our way in a new world outside the E.U. Or we can come together as one United Kingdom, confidently seizing new global opportunities as we build a prosperous, secure nation fit for the future challenges we will face.
Moving to a new school, or up a year at an existing school - with new friends, teachers, subjects, rules and expectation - is a big deal for young people. All of us who are adults remember how daunting it was, but we sometimes take it for granted that children will be able to cope with the change.
As the Eurozone takes steps towards closer fiscal and economic integration, and as the E.U. continues to develop, we need to be absolutely clear when it is most appropriate to take decisions at the national or local level, closer to the people affected, and in other cases when it is best to take action at the E.U. or global level.