Without subtle ingenuity of mind, one cannot make certain of the truth of their reports.
Probe him and learn where his strength is abundant and where deficient.
Convince your enemy that he will gain very little by attacking you; this will diminish his enthusiasm
He who knows his enemy and himself well will not be defeated easily.
If you fight with all your might, there is a chance of life; where as death is certain if you cling to your corner
To Subdue an enemy without fighting is the greatest of skills