Should the enemy strengthen his van, he will weaken his rear; should he strengthen his rear, he will weaken his van; should he strengthen his left, he will weaken his right; should he strengthen his right, he will weaken his left. If he sends reinforcements everywhere, he will everywhere be weak.
Sun TzuThere are not more than five primary colours, yet in combination they produce more hues than can ever been seen.
Sun TzuWith regard to narrow passes, if you can occupy them first, let them be strongly garrisoned and await the advent of the enemy.
Sun Tzu