Immature strategy is the cause of grief.
Generally speaking, the Way of the warrior is resolute acceptance of death.
You may abandon your own body but you must preserve your honour.
From inside fortifications, the gun has no equal among weapons. It is the supreme weapon on the field before the ranks clash, but once swords are crossed the gun becomes useless.
You must understand that there is more than one path to the top of the mountain
If the enemy thinks of the mountains, attack like the sea; and if he thinks of the sea, attack like the mountains.