Though pianists can be formidably accomplished, a certain musical and personal dimension often seems to be missing.

ECONOMIST: The keys of the kingdom | The

He argues that since people also make a mess, according to the mayor's reasoning they should also be removed. (Londoners must hope that the mayor is not persuaded by this reckless line of argument.) There is a personal dimension to the battle: Mr Livingstone and Mr Banks have been rivals in London's Labour Party for decades.

ECONOMIST: Battle of Trafalgar Square | The

Just when you think you have mastered all there is to know about social networks and traversing the canyon that is personal versus professional, another dimension comes into play.

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