We can say that Judo is an art because it is a method of arriving at self-realization and true self-expression. We can further say that Judo is a science because it implies mastery of various laws of nature: gravity, friction, momentum, velocity, weight transmission, and unison of forces. In its most important phase, it constitutes a kind of higher logic developed through practice and the ascencion of the true personality: a realization of the spiritual self in the philosophic rather than the religious sense of the word.

Jiichi Watanabe and Lindy Avakian