Invincibility lies in the defence; the possibility of victory in the attack.
If ignorant both of your enemy and yourself, you are certain to be in peril.
Hence to fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy's resistance without fighting.
He who knows when he can fight and when he cannot, will be victorious.
Supreme excellence consists in breaking the enemy's resistance without fighting.
The opportunity to secure ourselves against defeat lies in our own hands, but the opportunity of defeating the enemy is provided by the enemy himself.
You have to believe in yourself.
Si vis pacem, para bellum. If you want peace, prepare for war.