The Book Of Five Rings by Miyamoto Musashi, Preface/Introduction/The Way Of Walking Alone.
Audiobook.
Miyamoto Musashi (宮本 武蔵, c. 1584 – 13 June 1645),[1] also known as Shinmen Takezō, Miyamoto Bennosuke or, by his Buddhist name, Niten Dōraku,[2] was a Japanese swordsman, philosopher, strategist, writer and rōnin, who became renowned through stories of his unique double-bladed swordsmanship and undefeated record in his 61 duels (next is 33 by Itō Ittōsai). Musashi, as he was often simply known, is considered a Kensei, a sword saint of Japan.[3] He was the founder of the Niten Ichi-ryū, or Nito Ichi-ryū, style of swordsmanship, and in his final years authored The Book of Five Rings. (wikipedia)