To ensure that your whole host may withstand the brunt of th... ss. 5.3, Chapter 5: Energy

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

It is the business of a general to be quiet and thus ensure ... ss. 11.35, Chapter 11: The Nine Situations

On serious ground, I would try to ensure a continuous stream... ss. 11.49, Chapter 11: The Nine Situations