There is no instance of a nation benefiting from prolonged warfare.

Those skilled in attack move as from above the nine-fold heavens. Thus they are capable both of protecting themselves and of gaining complete victory.

Too frequent rewards indicate that the general is at the end of his resources; too frequent punishments that he is in acute distress.

What is of supreme importance in war is to attack the enemy's strategy.

Victory comes from finding opportunities in problems.

One need not destroy one's enemy. One need only destroy his willingness to engage.

Now a soldier's spirit is keenest in the morning; by noonday it has begun to flag; and in the evening, his mind is only on returning to camp.