You win battles by knowing the enemy's timing, and using a timing which the enemy does not expect.

As far as Im concerned, I regret nothing.

Do not let your spirit be influenced by your body, or your body be influenced by your spirit. Be neither insufficiently spirited or over spirited. An elevated spirit is weak and a low spirit is weak. Do not let the enemy see your spirit.

Unless you really understand others, you can hardly attain your own self-understanding.

It is imperative to master the principles of the art of war and learn to be unmoved in mind even in the heat of the battle.

Immature strategy is the cause of grief.

Water adopts the shape of its receptacle, it is sometimes a trickle and sometimes a wild sea.