Unlike the authors of such warrior classics as The Art of War and The Book of the Five Rings, which accept the inevitability of war and emphasize cunning strategy as a means to victory, Morihei understood that continued fighting-with others, with ourselves, and with the environment-will ruin the earth. “The world will continue to change dramatically, but fighting and war can destroy us utterly. What we need now are techniques of harmony, not those of contention. The Art of Peace is required, not the Art of War.