Sokaku Takeda, a master of the Daito-Ryu martial art, famously defeated bandits in 1914, showcasing his skill in evasion and using his opponents' weapons against them.
His later instruction of Morihei Ueshiba, a pivotal figure in the development of Aikido, significantly impacted the art's philosophy. Aikido, influenced by Daito-Ryu techniques, uniquely incorporates the concept of "ki," or life energy, to achieve harmony and non-violent self-defense.