4.12
Besides, if you conceal your outposts, you will have the chance of luring the enemy into an ambush by placing a few guards in the open to screen the hidden men. Occasionally, too, a cunning trap may be laid by posting a second body of exposed guards behind the men in hiding; for this plan may prove as deceptive to the enemy as the one just referred to.
4.13
A prudent commander will never take risks unnecessarily, except when it is clear beforehand that he will have the advantage of the enemy. To play into the enemy’s hand may fairly be considered treachery to one’s allies rather than courage.
4.14
Another sound principle is to go for any position where the enemy is weak, even if it is a long way off, since hard work is less dangerous than a struggle against superior forces.
4.15
But if the enemy places himself somewhere between yourself and fortresses friendly to you, then it is proper to attack him, even if he is greatly superior, on that side where your presence is unsuspected, or on both flanks at once, for when one part of your force is retiring, a charge on the opposite flank will flurry the enemy and rescue your friends.
4.16
It is an old maxim that, in attempting to discover what the enemy is about, it is well to employ spies. But the best plan of all, in my opinion, is for the commander himself to watch the enemy from some safe coign of vantage, if possible, and take notice of his mistakes.
