Judo versus Jujutsu
What were the techniques rejected by Kano?
Judo
 versus Jujutsu. Central to Kano's vision for judo were the principles of and . He illustrated the application of "seiryoku zen'yō" with the concept of :Kano realised that "seiryoku zen'yō", initially conceived as a Jujutsu concept, had a wider philosophical application. Coupled with the Confucianist-influenced "jita kyōei", the wider application shaped the development of judo from a to a . Kano rejected techniques that did not conform to these principles and emphasised the importance of efficiency in the execution of techniques. He was convinced that practice of Jujutsu while conforming to these ideals was a route to self-improvement and the betterment of society in general. He was, however, acutely conscious of the Japanese public's negative perception of Jujutsu:Kano believed that ""Jūjutsu"" was insufficient to describe his art: although means "art" or "means", it implies a method consisting of a collection of physical techniques. Accordingly, he changed the second character to , meaning way, road or path, which implies a more philosophical context than "jutsu" and has a common origin with the Chinese concept of "tao". Thus Kano renamed it .