Who said "The game requires a sharp mind and sharper instincts."?

This quote is attributed to Sherlock Holmes.

The game requires a sharp mind and sharper instincts. - Sherlock Holmes

"The game requires a sharp mind and sharper instincts."

Sherlock Holmes Wisdom

"The game is afoot!"

"Elementary, my dear Watson."

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."

"I am not a romantic, but I am a realist."

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."