SunTzu's books and quotes are relative to ongoing world events and shouldn't be ignored (as they have been for the last 7 years).
Here's an example:
http://www.chinapage.com/sunzi-e.html
Here's an example:
http://www.chinapage.com/sunzi-e.html
http://www.brainyquote.com/quotes/authors/s/sun_tzu.html
Be extremely subtle, even to the point of formlessness. Be extremely mysterious, even to the point of soundlessness. Thereby you can be the director of the opponent's fate.
Sun Tzu