The phrase "an ancient question" is correct and usable in written English.
You can use it when referring to a question that has been asked or pondered for a very long time, often in philosophical or historical contexts.
Example: "The search for meaning in life is an ancient question that has intrigued thinkers for centuries."
Alternatives: "a timeless question" or "a long-standing question".
"Evil" can help Americans think more clearly about an ancient question that is urgent in a new way.
The Rev. Thomas Valenti, a Columbia chaplain, began with an ancient question from the Book of Job.
Back in Athens, many Greeks said the government, not the people, should be held accountable for the country's problems, raising an ancient question.
It's an ancient question, and Lee's poems, quarrying their insights from the oldest and deepest sources, pose and answer it anew.
As he sat under the tree of the much abused and abusive white crowned sparrow, Dr. Baptista speculated about an ancient question.
More than a mere history of aesthetics, Art and Truth after Plato presents a fresh look at an ancient question, bringing it into contemporary relief.
But whether you want it or not, you've inherited the responsibility of creating a new answer to the ancient question of what it means to be a man.
At the heart of this area of research is the ancient question of when an arithmetic calculation yields a square number.
The opposition he faced and the length of time before his ideas were fully assimilated represented in part the difficulties of mathematicians in reassessing the ancient question: "What is a number?" Cantor demonstrated that the set of points on a line possessed a higher cardinal number than aleph-null.
Researchers at a high-level meeting probe the ancient question of what sets the human brain apart from those of other primates.
I'm obviously not talking about some rote recitation, but a heartfelt new exploration of the ancient question, who are we?
