The general who is skilled in defense hides in the most secr... ss. 4.7, Chapter 4: Tactical Dispositions

You can ensure the safety of your defense if you only hold p... ss. 6.7, Chapter 6: Weak Points and Strong

Hence that general is skillful in attack whose opponent does... ss. 6.8, Chapter 6: Weak Points and Strong

On open ground, I would keep a vigilant eye on my defenses. ... ss. 11.48, Chapter 11: The Nine Situations