„It is said that if you know your enemies and know yourself, you will not be imperiled in a hundred battles; if you do not know your enemies but do know yourself, you will win one and lose one; if you do not know your enemies nor yourself, you will be imperiled in every single battle.“
— Tom Heehler American author
— Sun Tzu ancient Chinese military general, strategist and philosopher from the Zhou Dynasty -543 - 251 avant J.-C.
This is sometimes attributed to Sun Tzu in combination with the above quote, as well as alone, but it too has not been sourced to any published translation of The Art of War, though it is similar in concept to his famous statement in Ch. 3 : "It is said that if you know your enemies and know yourself, you will not be imperiled in a hundred battles..."
„"To know the times" means to know the enemy's disposition in battle. Is is flourishing or waning? By observing the spirit of the enemy's men and getting the best position, you can work out the enemy's disposition and move your men accordingly.“
— Miyamoto Musashi Japanese martial artist, writer, artist 1585 - 1645
„Know, my son, that the enemy will always be with you. He will be in the shadow of your dreams and in your living flesh, for he is the other part of yourself.“
— Jane Yolen American speculative fiction and children's writer 1939
— Lauren Bacall American actress, model 1924 - 2014
„You get freedom by letting your enemy know that you'll do anything to get your freedom; then you'll get it.“
— Malcolm X American human rights activist 1925 - 1965
Context: You get freedom by letting your enemy know that you'll do anything to get your freedom; then you'll get it. It's the only way you'll get it. Advice to the Youth of Mississippi (31 December 1964) http://www.britannica.com/blackhistory/article-9399834
— Anthony Horowitz, Crocodile Tears
— Paulo Coelho, Eleven Minutes