Sun Tzu — "The greatest victory is that which requires no battle."

"The principle of war is to be neither too confident nor too fearful."

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

"Therefore, the skillful leader subdues the enemy's troops without any fighting; he captures their cities without laying siege to them; he overthrows their kingdom without long years of campaigning."

"If you know the enemy and know yourself, your victory will not stand in doubt; if you know Heaven and know Earth, you may make your victory complete."

"If words are not clear and distinct, if orders are not thoroughly understood, then the general is to blame."