“Nobody observes you and studies you as much as your enemy.”

“You can discover what your enemy fears most by observing the means he uses to frighten you.”

“You have so much to learn from your enemies.”

“Your worst enemy cannot harm you as much as your own unguarded thoughts.”

“… she studied his clothes, his top hat. “And you’ve just come from Parliament? How are you finding that?”

“It’s much like piracy. You tell your enemies that if they don’t fall in line, you’ll leave them to die.”

“Nobody forbade me from observing the potteries in the pottery yard but no archaeologist was there to help me in my study.”

“If you limit your actions in life to things that nobody can possibly find fault with, you will not do much!”

“An Enemy is a friend who knows too much about you. Remember to keep your enemies close to protect all those who you love.”

“"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.”

“Nobody will ever win the battle of the sexes. There is too much fraternizing with the enemy.”