Along Similar Lines, Miyamoto Musashi...

...has been quoted here a few times. Thought I've offer a little context.

Musashi's treatise on the Art of Strategy, called the "Book of Five Rings" is broken into 5 smaller "books"...The Ground Book, the Water Book, the Fire Book, the Wind book, and the Book of the Void. In the Ground Book, Musashi lays out the foundation of his Strategy.

"This is the Way for men who want to learn my strategy...

*Do not think dishonestly.
*The Way is in training.
*Become acquainted with every art.
*Know the Ways of all professions.
*Distinguish between gain and loss in worldly matters.
*Develop intuitive judgment and understanding for   everything.
*Perceive those things which cannot be seen.
*Pay attention even to trifles.
*Do nothing which is of no use."

Many businesses in Japan still use this classic guide in their company boardrooms. To think of the Book of Five Rings as merely a guide to being victorious in battle, is to be short-sighted... Obtuse. As a rule, anything in which the Japanese see profit should be closely examined.