"intellectual milieu" is a correct and usable phrase in written English.
You can use it to refer to an atmosphere that encourages intellectual discourse, debate, and activity. For example, "The professor's seminars created an intellectual milieu where students were encouraged to think critically and ask challenging questions."
But they occupied a common intellectual milieu.
He grew up in an intellectual milieu in Florence.
Now, someone from the intellectual milieu associated with the University of Chicago is a plausible candidate.
These two intellectual milieu are as different as chalk and cheese.
His son, the madman, had no longer grown up in an intellectual milieu.
Zimin is loved and revered by many in the Russian intellectual milieu, and even the government recognized his contribution.
In addition to three cultures and countries, El Greco's career spanned two apprenticeships, numerous stylistic phases, at least two faiths and several artistic and intellectual milieus.
Mathilde's research addresses these lacunae by investigating the evolution of Macao's built environment throughout the second half of the sixteenth century and its relationship to the images of the city that circulated in European and Chinese intellectual milieus.
"The desire to distance ourselves from a 'puritanism' which is 'Protestant,' 'Anglo-Saxon' and 'feminist' plays well notably in intellectual milieus, and anti-Americanism has been a constant dimension of anti-feminism in France for more than a century," Ms. Bard said.
Barsky's careful reconstruction of the early political-intellectual milieu and influences on Chomsky is extremely useful.
Played by the 19-year-old Adèle Exarchopoulos, an acting revelation, she is thrown into disarray, then ecstasy, then melancholy by an explosive love affair with Emma Léa Seydouxx), an art student from a liberal-intellectual milieu, with gamine looks and blue-dyed hair.
