In relation to Self Defence

“Thus we may know that there are five essentials for victory: 1 He will win who knows when to fight and when not to fight. 2 He will win who knows how to handle both superior and inferior forces. 3 He will win whose army is animated by the same spirit throughout all its ranks. 4 He will win who, prepared himself, waits to take the enemy unprepared. 5 He will win who has military capacity and is not interfered with by the sovereign.” ― Sun Tzu, The Art of War