The phrase "indispensable foundation" is correct and usable in written English.
You can use it when referring to something which provides a key support or framework for a plan, project, or activity. For example: "The organizational team has laid down an indispensable foundation for the success of the project."
About that final quibble: the organization identifies "western intellectual heritage as the indispensable foundation of American higher education".
All human beings begin in a state of dependency and the human family is the indispensable foundation for this, with unconditional family love mirroring the love of God.
Treating the entire superconductivity field, this unparalleled reference resource blends theoretical studies with experimental results to provide the scientists and engineers an indispensable foundation for further research.
Evidence for the latter suggests that the cognitive structures we develop to perceive, navigate, and remember space are the indispensable foundation of more abstract cognitive tasks.
The plurality seems to believe that membership in such a suspect group is somehow an indispensable foundation for any Ffith Amendment claim.
'Their Lordships regard the use of precedent as an indispensable foundation upon which to decide what is the law and its application to individual cases.
Intelligent sensing technology is one of the indispensable foundations for the realization of intelligent manufacturing.
Fittingly for a writer whose work could take artful pains to dispense with seemingly indispensable linguistic foundation stones (she once wrote an entire novel without using the verb "to be"), the "where" of Ms. Brooke-Rose's death — whether it occurred at her longtime home in the South of France or elsewhere — was unspecified.
Consequently, PIAAC and its successors will serve as indispensable tools in attempts to identify and understand the key relationships that are essential foundations for evidence-informed policy formulation.
They are the foundation, indispensable heart and essence of everything that appears on the stage; be it a play or a musical, whether in a school, community theatre, a church, or professional theatre in any town in America and also of course on Broadway (plus more than the 68 countries around the world that regularly produce and perform American theatre).
Roughly $13bn was paid out in the European Recovery Program (the Marshall plan's official name) and this proved indispensable in laying the foundations for the "miracle" of sustained economic growth in the decade that followed.
