A warrior has no confusion in his mind...This is true emptiness.

No man is invincible, and therefore no man can fully understand that which would make him invincible. Even with complete and thorough study there is always the possibility of being defeated and although one may be expert in a particular form, mastery is something a man never stops seeking to attain.

Even if a man has no natural ability, he can be a warrior.

If the enemy thinks of the mountains, attack like the sea; and if he thinks of the sea, attack like the mountains.

Thirdly, the gentleman warrior, carrying the weaponry of his way. The way of the warrior is to master the virtue of his weapons. If a gentleman dislikes strategy he will not appreciate the benefit of weaponry, so must he not have a little taste for this?

You should not have a favourite weapon. To become over-familiar with one weapon is as much a fault as not knowing it sufficiently well.

Never stray from the Way.