The phrase "a man of knowledge" is correct and usable in written English.
It can be used to describe someone who possesses a significant amount of information or expertise in a particular area.
Example: "In our discussions, he always brings valuable insights as a man of knowledge in the field of economics."
Alternatives: "a knowledgeable person" or "an expert individual".
"I would really like him to stay, he's a man of knowledge and experience.
By D. Kirkpatrick The New Yorker, March 28 , 1931 P. 29He is a man of knowledge, he can tell View Article By Jelani Cobb By Doreen St. Félix By David Remnick By Jia Tolentino.
The New Yorker, March 28 , 1931 P. 29He is a man of knowledge, he can tell View Article Trump's Lawyers Argue That He Cannot Be Impeached Because He Was Never Actually Elected What Happens When a Bad-Tempered, Distractible Doofus Runs an Empire?
Shams was a man of knowledge, who had committed the Quran to memory, and who renounced all his worldly possessions in search for a man who could "endure his company".
Byerly was a man of wide knowledge and much practical wisdom.
A man of encyclopedic knowledge and indomitable spirit, Mike was also a passionate civil rights crusader and environmental conservationist.
A man of wide knowledge and interests, for many years he taught the Introduction to the Arts course for the Open University.
Mankiewicz was indignant that anyone could suggest that a man of his knowledge would need to crib, and he paraded his credentials.
But, though Muḥammad ʿAlī had considerable native intelligence and great personal charm, he was a man of limited knowledge and narrow horizons.
Yet Charles the Bold was not merely a belated representative of the chivalrous spirit; he was a man of wide knowledge and culture, already a prince of the Renaissance.
As Washington put it, "It is very unlikely therefore that a man of his knowledge and foresight should turn on both sides of a question in so short a space.
