It runs perpetually, never stopping, always moving, for 18 years.
In 1905, across the street from the oval, the ornate Heins & LaFarge subway kiosk opened, with its filigreed masonry and its big clock with Roman numerals, stopped perpetually at 10 minutes past 11.
That, all the same, has not stopped a perpetually fermenting section of social media taking excerpts from a Times column Gove wrote in 1998 – headlined "Bring back the Noose" – and sharing them in a tremor, as if all the new Justice Secretary plans to do in office is refit a gallows, march his enemies to it and tie the hangman's knot himself.
She exhales in little staccato bursts that make it sound as if she is perpetually enjoying a private joke, and hip surgery has not stopped her from cooking delicious meals for the entire family.
Because Mr Schecter's clock had stopped while mine continued to tick, he and I were perpetually out of sync.
I still stoop to peer up at the skyscrapers when I drive through midtown Atlanta, and when I'm in New York, I must perpetually remind myself to stop gazing upward as I walk the streets.
Eddie, a salesman of "remote-control filing cabinets" and office stationery, is the kind of perpetually nervous guy who can't stop embarrassing himself.
Like Ellington – and out of much the same unquenchable enthusiasm for music-making – advancing years did not stop Dankworth and Laine being perpetually busy.
Buildings that have outlived their purpose have no right to be preserved perpetually in a Prince Charles-style attempt to stop the clock on history.
If we don't stop to consider this, we may end up perpetually rushing out to buy more "stuff," never realizing what we truly need, genuinely want and cannot afford to waste.
