"Trained in the Confucian classics, [Funakoshi] was a schoolteacher early in life, but after decades of study under the foremost masters, he gave up his livelihood to devote the rest of his life to the propagation of the Way of Karate. Under his guidance, techniques and nomenclature were refined and modernized, the spiritual essence was brought to the fore, and karate evolved into a true martial art"--Amazon.com.
