"Know the enemy and know yourself; in a hundred battles you will never be in peril."
"When you are ignorant of the enemy and know yourself, your chances of winning or losing are equal." "If ignorant of your enemey and of yourself, you are certain in every battle to be in peril." The Art of War--Sun Tzu 341 B.C.
"Vigilance in combat [business] means keeping one's eyes open." The Book of Five Rings--Miyamoto Musashi
"Fortune shines upon a prepared mind." Louis Pasteur
