"The game of golf would lose a great deal if croquet mallets and billiard cues were allowed on the putting green"

This quote by Ernest Hemingway is describing the game of golf and how it would be dramatically various if other sports devices were enabled on the putting green. Hemingway is recommending that the game of golf would be much less enjoyable and difficult if croquet mallets and billiard cues were enabled on the putting green. He is implying that the video game of golf is unique and ought to remain as such, and that enabling other sports devices would eliminate from the video game's creativity and obstacle. Hemingway is emphasizing the significance of keeping the game of golf as it is, and not permitting other sports devices to be used on the putting green. He is suggesting that the game of golf would lose its beauty and appeal if other sports equipment were permitted on the putting green.