I thought I'd chip in what little I have to offer, so I will give you some Japanese quotes:

The man whose profession is arms should calm his mind and look into the depths of others. Doing so is likely the best of the martial arts.
Shiba Yoshimasa (1350-1410)

-Without knowledge of Learning, one will ultimately have no military victories.

-One should not be envious of someone who has prospered by unjust deeds. Nor should he disdain someone who has fallen while adhering to the path of righteousness.
Imagawa Sadayo (1325-1420)

-No matter whether a person belongs to the upper or lower ranks, if he has not put his life on the line at least once he has cause for shame.
Nabeshima Naoshige (1538-1618)

-Strategy is the craft of the warrior. Commanders must enact the craft, and troopers should know this Way. There is no warrior in the world today who really understands the Way of strategy.... It is said the warrior's is the twofold Way of pen and sword, and he should have a taste for both Ways.

-Students of the Ichi school Way of strategy should train from the start with the sword and long sword in either hand. This is a truth: when you sacrifice your life, you must make fullest use of your weaponry. It is false not to do so, and to die with a weapon yet undrawn.

-In strategy your spiritual bearing must not be any different from normal. Both in fighting and in everday life you should be determined though calm. Meet the situation without tenseness yet not recklessly, your spirit settled yet unbiased.

-If the enemy thinks of the mountains, attack like the sea; and if he thinks of the sea, attack like the mountains.
Miyamoto Musashi (1584-1645)

-Anger itself does more harm than the condition which aroused anger.
Samurai Maxim

-The angry man will defeat himself in battle as well as in life.
Samurai Maxim

-Truth exists for the wise, beauty for the feeling heart.
Samurai Maxim


Some Mongol quotes:

"It is not sufficient that I succeed--all others must fail."
-Genghis Khan

"The Greatest Happiness is to scatter your enemy and drive him before you. To see his cities reduced to ashes. To see those who love him shrouded and in tears. And to gather to your bosom his wives and daughters."
-Genghis Khan

"Not even a mighty warrior can brake a frail arrow when it is multiplied and supported by its fellows. As long as you brothers support one another and render assistance to one another, your enemies can never gain the victory over you. But if you fall away from each other your enemy can brake you like frail arrows, one at a time."
-Genghis Khan