Whatever your determination or will power, it is foolish to try to change the nature of things. Things work the way they do because that is the way of things

A man cannot understand the art he is studying if he only looks for the end result without taking the time to delve deeply into the reasoning of the study.

To become the enemy, see yourself as the enemy of the enemy

It is difficult to realize the true Way just through sword-fencing. Know the smallest things and the biggest things, the shallowest things and the deepest things.

Accept everything just the way it is.

When you have attained the way of strategy there will be nothing that you cannot understand. You will see the way in everything.

If you want to learn the craft of war, ponder over this book. The teacher is as a needle, the disciple is as thread. You must practice constantly.