I understand why the Lib Dems feel the imperative to challenge the notion that they are compliant accomplices marching to Conservative tunes.
The moral and practical imperative to begin to put arms permanently beyond use now needs to be hammered home, particularly by the Irish government.
Little wonder that fairness as a moral ideal can be dismissed as hazy romanticism and the ethical imperative of the green-eyed monster.
It is imperative that once the immediate crisis is over, the eyes of the world do not turn away from the region "It is imperative that once the immediate crisis is over, the eyes of the world do not turn away from the region," it said.
The lobbying push underlines the sensitivity surrounding Pope Francis's highly anticipated encyclical on the environment, whose aim will be to frame the climate change issue as a moral imperative.
Fifty years later the Irish Republic will commemorate the rebellion with equal national enthusiasm but with most of its population more concerned with the huge debts bestowed upon the current generation than the imperative of the "dead generations" urging it on to take back the north of Ireland and fulfil its historic mission towards unity.
At the general election, it is imperative that the SNP is seen and Scotland's voice is heard.
Sources say the lessons they have drawn from Canada are threefold: first, that "showing up" at community events matters; second, that it is imperative to engage heavily with specialist minority media; and third, to mind your language.
And the richer you get the less imperative there is.
Creative endeavour as a route out of frustration and social alienation was not just an appealing idea, Drew suggested, but a growing political imperative.
Labour's spokesman on Europe, Pat McFadden, told the meeting it was imperative that the party did not simply "tune back in to the normal rhythms of opposition" but honestly confronted its disasters in Scotland, England and Wales.
