Crossing at a ford occurs often in a man's lifetime. It means setting sail even though your friends stay in harbour, knowing the route, knowing the soundness of your ship and the favour of the day.

Immature strategy is the cause of grief.

Do not act following customary beliefs.

No Fear, No Hesitation, No Surprise, No Doubt

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

The way is in training.

Cutting down the enemy is the way of strategy, and there is no need for many refinements of it.