The phrase "has a sharp mind" is grammatically correct and usable in written English.
You can use it to refer to someone who is particularly intelligent, or is quick to understand a concept. For example, "John has a sharp mind and always grasps the concepts of the class quickly."
Bradley – a four-time world champion – has a sharp mind, which has resulted in the fighter becoming a part-time television analyst.
Interlocutors say Mr Mugabe has a sharp mind but slumping limbs; the nonagenarian spent more than a month with his doctors in Singapore over Christmas.Still, why continue the vilification of Mrs Mujuru now?
Kenny, a Brit who lives in the District of Columbia and has a sharp mind, a quick wit and the fancy title of senior fellow at the Center for Global Development, has come to my rescue before.
Ari Fleischer, the White House press secretary, would say last week only that Mr. Bush "enjoys spending time with Senator Kennedy, thinks he has a sharp mind and knows that he's a gifted legislator".
SoHo Through July 14 Toru Hayashi, a Japanese artist who has lived in New York since 1990, has a sharp mind and a wonderful feeling for materials, but his second exquisitely reduced solo show creates the impression that he is taking care not to strain himself.
A daughter, Thelma Holloway, tells the Detroit Free Press (http://on.freep.com/1F2Ez2k ) that her mother still has a sharp mind.
"While maybe a less imaginative designer than Mayne, he has a sharper mind.
Bob had a sharp mind, great humor, and integrity.
I discovered very quickly that I had a sharp mind and an exceedingly sharp tongue.
Had a sharp mind, keen memory, and flashing steel grey eyes until the very end.
Allies and adversaries alike praise her as having a sharp mind.
