"I have lived without following any particular Way. Thus with the virtue of strategy I practise many arts and abilities - all things with no teacher. To write this book I did not use the law of Buddha or the teachings of Confucius, neither old war chronicles nor books on martial tactics. I take up my brush to explain the true spirit of this Ichi school (Niten Ichi-ryū (二天一流?), which can be loosely translated as "the school of the strategy of two heavens as one") as it is mirrored in the Way of heaven and Kwannon. The time is the night of the tenth day of the tenth month, at the hour of the tiger (3-5 a.m.) "
-Miyamoto Musashi, the book of Five Rings