For I know that, despite the huge constitutional difference between a hereditary monarchy and an elected government, in reality the gulf is not so wide ... And each, in its different way, exists only with the support and consent of the people. That consent, or the lack of it, is expressed for you, prime minister, through the ballot box. It is a tough, even brutal, system but at least the message is a clear one for all to read. For us, a royal family, however, the message is often harder to read, obscured as it can be by deference, rhetoric or the conflicting currents of public opinion.

The ceremonies you have seen today are ancient, and some of their origins are veiled in the mists of the past. But their spirit and their meaning shine through the ages never, perhaps, more brightly than now.

As we mark this anniversary, it gives me pleasure to renew to you the pledge I gave in 1947, that my life will always be devoted to your service. And so, as I look forward to continuing to serve you with all my heart, I hope this jubilee will bring together families and friends, neighbours and communities - after some difficult times for so many of us - in order to enjoy the celebrations and to reflect on the positive developments in our day-to-day lives that have so happily coincided with my reign.

I cannot lead you into battle. I do not give you laws or administer justice. But I can do something else. I can give you my heart and my devotion to these old islands and to all the peoples of our brotherhood of nations.

It's inevitable that I should seem a rather remote figure to many of you, a successor to the kings and queens of history.

There is a motto which has been borne by many of my ancestors - a noble motto, "I serve". Those words were an inspiration to many bygone heirs to the Throne when they made their knightly dedication as they came to manhood. I cannot do quite as they did.