Judo (The Gentle Way) was founded by Dr. Jigoro Kano (1860-1938) in 1882. The essence of this system he expressed in the axiom "maximum efficient use of energy", a concept he considered both a cornerstone of martial arts and a principle useful in many aspects of life. Practical application of this principle, he felt, could contribute much to human and social development, including "mutual prosperity for self and others", which he identified as the proper goal of training. What Kano had created transcended mere technique to embrace a set of principles for perfecting the self. To reflect this, he replaced jutsu (technique) in the word "Ju-jutsu" with the suffix do (path) to create a new name for his art: judo. His training hall he named "Ko-do-kan," or "a place to teach the path."