"A neatly cut beard is of enormous importance in life, believe me. It produces an extraordinary effect. Look at me. I have my beard cut regularly twice a week and I am certain that a great deal of my popularity is due to it."
According to the New York Times (May 17, 1903), King Edward VII (Queen Victoria's son -- Queen Elizabeth's great grandfather) gave this advice to Sir Edmond Monson. Monson took the king's advice and then rose to the "top of his profession" becoming Ambassador to Paris.
I don't necessarily agree with the king, since I think there is more to grooming than cutting. I would substitute the word "groomed" for "cut" in the above quote.