an aptitude of the several parts of the body to motion; or it may be defined, The art or talent of making the best use of our strength.—The improving of agility was one of the chief objects of the institution of games and exercises. The athlete made particular profession of the science of cultivating and improving agility. Agility of body is often supposed peculiar to some people; yet it seems not owing to anything in their frame and structure different from others, but entirely to practice.