If I wish to engage, then the enemy, for all his high ramparts and deep moat, cannot avoid engagement; I attack that which he is obliged to rescue.
Who does not know the evils of war cannot appreciate its benefits.
He who relies solely on warlike measures shall be exterminated; he who relies solely on peaceful measures shall perish.
In desperate position, you must fight.
In the midst of chaos, there is also opportunity.
Know the enemy and know yourself.