The phrase "a source of lasting" is correct and usable in written English.
It can be used when referring to something that provides enduring value or significance over time.
Example: "Education is often considered a source of lasting knowledge that shapes individuals for a lifetime."
Alternatives: "a source of enduring" or "a source of permanent".
Wren's father, the Dean of Windsor, was in charge of the Garter ceremonies, a source of lasting pride to the family.
Though Cheever was gone by the time the company joined the mid-1990's downsizing frenzy, this betrayal of that imaginary ideal seems to be a source of lasting bitterness and hurt.
These are some of the exciting things in Mr Clarke's science fiction, an ambitiousness that goes back to Olaf Stapledon's "Last and First Men"—which the young Clarke borrowed from Minehead town library in the 1930s and which proved a source of lasting inspiration.
Once he had read Luther's three radical tracts of 1520, he began warning friends, especially his own young humanist disciples who were attracted to Luther, that they should be careful about embracing what seemed certain to become a source of lasting division.
Risk agility is a source of lasting competitive advantage.
Israelis have leaders who recognize that a peaceful, democratic Palestinian state will be a source of lasting security.
Not only did this result in worse deals, but seeing a source of last-minute revenue turn into a product that now competed with their own booking platform really pissed hotels off.
At least before 2008 the IMF had become less important as a source of last-resort lending, but remained powerful as a gatekeeper for development assistance and debt relief (Gore 2004).
Previous studies have reported that CPD, but not 6-4PP, lesions are the major source of lasting UV-induced mutations [ 10], as CPD is usually at a 5 to 10 fold higher frequency than 6-4PP [ 11, 12].
As such, they become a source of relief and even of lasting fulfilment, notwithstanding the limitations of the disease [ 1].
But once in a while, commuting becomes high adventure, a source of laughter and the stuff of lasting memories.
