It is a principle of the art of war that one should simply lay down his life and strike. If one's opponent also does the same, it is a even match. Defeating one's opponent is then a matter of faith and destiny.
Yamamoto TsunetomoNot to borrow the strength of another, nor to rely on one's own strength; to cut off past and future thoughts, and not to live within the everyday mind... then the Great Way is right before your eyes.
Yamamoto TsunetomoBe true to the thought of the moment and avoid distraction. Other than continuing to exert yourself, enter into nothing else, but go to the extent of living single thought by single thought.
Yamamoto TsunetomoIt is better not to become acquainted with men about whom you have formerly had doubts. No matter what you do, they will be people by whom you will be tripped up or taken in.
Yamamoto Tsunetomo