To win any battle, you must fight as if you are already dead
This is truth: When you sacrifice your life, you must make fullest use of your weaponry. It is false not to do so, and to die with a weapon as yet undrawn.
The important thing in strategy is to suppress the enemy's useful actions but allow his useless actions
Become acquainted with every art.
The way is in training.
By knowing things that exist, you can know that which does not exist.