"fundamental institution" is correct and usable in written English.
You can use it to describe a foundational or essential group or organization. For example, "The Church is a fundamental institution of our society."
Now that really would threaten a fundamental institution of civilisation.
Social conservatives like Mr. Bush are right in saying that marriage is "the most fundamental institution in civilization".
Social conservatives argue from the premise that marriage is important to society -- the president called it "the most fundamental institution of civilization" -- and must be protected.
I was never an opponent of gay marriage, but I can't dismiss the skepticism of people who instinctively resisted change to an ancient and fundamental institution.
It was only a week ago that President Bush, saying the union of a man and a woman is "the most fundamental institution of civilization," called for a constitutional amendment to ban gay marriage.
Trying to stop what he termed "activist judges," President Bush on Tuesday called for an amendment to the Constitution to define marriage as the union of a man and a woman, which he called "'the most fundamental institution of civilization".
And they are instilled in us by fundamental institutions, such as families, and schools, and religious congregations.
Rosser and Rosser show how history shapes fundamental institutions that allocate resources, protect property rights and enforce contracts.
You see both men respond in the same way — attacks on fundamental institutions of democracy like the judiciary and the media," Ben-Ami said.
The result is a compelling account of the stock market's regulatory framework, fundamental institutions, and economic dynamics, combined with an assessment of its various controversies.
The future of work debate has sparked a set of important conversations about how to change fundamental institutions like health care, pensions, and labor organization.
