It is rather a pity, considered from the standpoint of the professional politician or opinion-taker, that nobody knows exactly what "credibility" is, or how one acquires it. "Credibility" doesn't stand for anything morally straightforward, like meaning what you say or saying what you mean. Nor does it signify anything remotely quantifiable — any correlation between evidence presented and case made. Suggestively, perhaps, it entered the language as a consensus euphemism during the Vietnam War, when "concerned" members of the Eastern Establishment spoke of a "credibility gap" rather than give awful utterance to the thought that the Johnson administration was systematically lying. To restore its "credibility," that administration was urged — not to stop lying, but to improve its public presentation. At some stage in the lesson learned from that injunction, the era of postmodern politics began. It doesn't seem ridiculous now to have "approval ratings" that fluctuate from week to week, because these are based upon the all-important "perception" factor, which has in turn quite lost its own relationship to the word "perceptive."

The evidence is that on 'Commonwealth' questions Her Majesty reserves a certain autonomy when it comes to the expression of an opinion. But you can't have it both ways. Queen Victoria used to browbeat poor Mr Gladstone most dreadfully when it came to overseas or, as they were then called, 'imperial' matters. Either this is proper or it isn't. You either accept the principle of royal intervention or you don't. And if you don't, you always have the choice of an actual 'Commonwealth' - the beautiful and resonant name given by the English revolutionaries to the most forbidden passage of our history after the removal of the Stuarts.

A life that partakes even a little of friendship, love, irony, humor, parenthood, literature, and music, and the chance to take part in battles for the liberation of others cannot be called 'meaningless'...