From the Sun Tzu masterpiece “The Art of War”
Five Essentials for Victory:
- He will win who knows when to fight and when not to fight.
- He will win who knows how to handle both superior and inferior forces.
- He will win whose army is animated by the same spirit throughout all its ranks.
- He will win who, prepared himself, waits to take the enemy unprepared.
- He will win who has military capacity and is not interfered with by the sovereign.
Therefore, as the saying goes:
If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.