All warfare is based on deception.

兵無常勢、水無常形。能因敵変化而取勝者、謂之神。

If you know the enemy and know yourself, you need not fear the result of a hundred battles.

To fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy's resistance without fighting.

是非に及ばず。

-- Oda Nobunaga

Swift as the wind, silent as the forest, fierce as fire, immovable as the mountain.

-- Takeda Shingen

信玄の兵法に、のちの勝ちを大切にするとある。それもよいが、わしは先の勝ちを大切にする。

-- Uesugi Kenshin

Youth on horseback has passed. The world is at peace and white hairs multiply. With what remains of life that heaven permits, how can I not enjoy it?

-- Date Masamune

This man might be the one to seize the realm.

-- Kuroda Yoshitaka

I do not mind hardship — only let it be hardship that matters.

-- Takasugi Shinsaku