The phrase "around a cornerstone" is correct and usable in written English.
It can be used to describe something that is built upon or centered around a fundamental principle or idea.
Example: "The new policy is designed around a cornerstone of transparency and accountability."
Alternatives: "based on a foundation" or "centered on a principle".
By that point, Schwarzenegger and legislative allies had made the tailpipe emissions law -- which makes cars more fuel efficient and cleaner all around -- a cornerstone of the state's landmark climate change program, signed into law in 2006 in another spectacular San Francisco ceremony, this time on Treasure Island with then British Prime Minister Tony Blair beaming into the festivities.
Each time, people recognized the room's beauty, its significance as a cornerstone of the city's downtown, and rallied around it to restore it.
Hillary Clinton made an open and secure Internet supporting freedom around the world a cornerstone of her tenure as secretary of state.
"It is like a cornerstone.
A credible and very humane take on a cornerstone story.
Beta-lactam antibiotics are used commonly and are regarded as a cornerstone in the management of critically ill patients with severe sepsis in intensive care units (ICU) around the world [1, 3, 4].
Destiny, which cost $1.38 billion to build, is the most expensive single piece of the modular station and a cornerstone around which the rest of the orbiting complex will be built.
Avoiding such civilian deaths, which came on the second day of a major allied offensive around Marja, has been a cornerstone of the war strategy by the top American commander, Gen. Stanley A. McChrystal.
The mechanics may be changing - MySpace pages replacing demo tapes, music sold independently online - but the Transit van trawl around the toilet circuit remains a cornerstone rite of passage for aspirant rock stars, and audiences are taught to mistrust anyone who hasn't paid these dues.
