Six Secret Teachings, Dog Teaching — Weighing the Arms六韜 均兵
1One chariot matches eighty foot soldiers — how the arms are weighed against each other
武王問太公曰：「以車與步卒戰，一車當幾步卒，幾步卒當一車？以騎與步卒戰，一騎當幾步卒，幾步卒當一騎？以車與騎戰，一車當幾騎，幾騎當一車？」太公曰：「車者，軍之羽翼也，所以陷堅陣，要強敵，遮走北也。騎者，軍之伺候也，所以踵敗軍，絕糧道，擊便寇也。故車騎不敵戰，則一騎不能當步卒一人，三軍之眾成陣而相當：則易戰之法，一車當步卒八十人，八十人當一車；一騎當步卒八人，八人當一騎；一車當十騎，十騎當一車。險戰之法，一車當步卒四十人，四十人當一車；一騎當步卒四人，四人當一騎；一車當六騎，六騎當一車。夫車騎者，軍之武兵也。十乘敗千人，百乘敗萬人；十騎走百人，百騎走千人，此其大數也。」武王曰：「車騎之吏數與陣法奈何？」太公曰：「置車之吏數：五車一長，十五車一吏，五十車一率，百車一將。易戰之法，五車為列，相去四十步，左右十步，隊間六十步。險戰之法，車必循道，十五車為聚，三十車為屯，前後相去二十步，左右六步，隊間三十六步。縱橫相去一里，各返故道。置騎之吏數：五騎一長，十騎一吏，百騎一率，二百騎一將。易戰之法：五騎為列，前後相去二十步，左右四步，隊間五十步；險戰之法：前後相去十步，左右二步，隊間二十五步。三十騎為一屯，六十騎為一輩，縱橫相去百步，周還各復故處。」武王曰：「善哉！」
King Wu asked Taigong, "When chariots fight foot soldiers, how many foot soldiers does one chariot match, and how many foot soldiers match one chariot? When horsemen fight foot soldiers, how many foot soldiers does one horseman match, and how many foot soldiers match one horseman? When chariots fight horsemen, how many horsemen does one chariot match, and how many horsemen match one chariot?" Taigong said, "Chariots are the wings of the army. They break firm ranks, block the strong enemy and bar the way of those who flee. Horsemen are the scouts of the army. They follow after a beaten army, cut the grain road and strike the enemy where he is at ease. So if chariots and horsemen do not meet in battle, one horseman cannot match a single foot soldier. But when the host of the three armies forms its ranks and stands against the enemy, then by the way of fighting on level ground one chariot matches eighty foot soldiers and eighty match one chariot, one horseman matches eight foot soldiers and eight match one horseman, one chariot matches ten horsemen and ten match one chariot. By the way of fighting on broken ground, one chariot matches forty foot soldiers and forty match one chariot, one horseman matches four foot soldiers and four match one horseman, one chariot matches six horsemen and six match one chariot. Chariots and horsemen are the martial arm of the army. Ten chariots break a thousand men and a hundred chariots break ten thousand men; ten horsemen put a hundred men to flight and a hundred horsemen put a thousand men to flight. These are the great numbers." King Wu said, "What of the number of officers over the chariots and the horsemen, and the rule of their ranks?" Taigong said, "In setting the number of officers over the chariots, five chariots have one leader, fifteen chariots one officer, fifty chariots one commander, and a hundred chariots one general. By the way of fighting on level ground, five chariots make a line, forty paces apart, ten paces to left and right, and sixty paces between squads. By the way of fighting on broken ground, the chariots must keep to the road; fifteen chariots make a group and thirty chariots a camp, twenty paces apart front and rear, six paces to left and right, and thirty-six paces between squads. Crosswise and lengthwise they keep one li apart, and each comes back by the old road. In setting the number of officers over the horsemen, five horsemen have one leader, ten horsemen one officer, a hundred horsemen one commander, and two hundred horsemen one general. By the way of fighting on level ground, five horsemen make a line, twenty paces apart front and rear, four paces to left and right, and fifty paces between squads. By the way of fighting on broken ground, ten paces front and rear, two paces to left and right, and twenty-five paces between squads. Thirty horsemen make one camp and sixty horsemen one band. Crosswise and lengthwise they keep a hundred paces apart, and when they have wheeled about each comes back to his own place." King Wu said, "Good."