"The Border Collie is a well balanced, medium-sized dog of athletic appearance, displaying gracefulness, power and agility in equal measure. Its hard, muscular body conveys the impression of effortless movement and endless endurance. The Border Collie is extremely intelligent, with its keen, alert expression being a very important characteristic of the breed. Those aspects of structure, movement or temperament that enhance the dog's ability to function as a herding dog are virtues that should be strongly rewarded"