Sun Tzu — "Never venture to move, unless to gain a decided advantage; never do battle, unle…"

"It is only the enlightened ruler and the wise general who will use the highest intellect of the army for the purposes of spying, and thereby they achieve great results."

"The general who has no skill in strategy will be defeated."

"Rouse him, and learn the principle of his activity or inactivity. Force him to reveal himself, so as to find out his vulnerable spots."

"If words are used to convey intelligence, and if that intelligence is misleading, then the words are being used to deceive."

"If your opponent is of choleric temperament, seek to irritate him."