from one thing, know ten thousand things

The Way of the warrior does not include other ways, such as Confucianism, Buddhism, certain traditions, artistic accomplishments, and dancing. But even though these are not part of the Way, if you know the Way broadly, you will see it 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.

The warrior is different in that studying the Way of strategy is based on overcoming men

Think lightly of yourself and deeply of the world

One must make the warrior walk his everyday walk.

It is said the warrior's is the twofold Way of pen and sword, and he should have a taste for both Ways. Even if a man has no natural ability he can be a warrior by sticking assiduously to both divisions of the Way.