Zhang Yi addressed the King of Qin:
"I have heard that to speak without understanding is unwise, and to understand but not speak is disloyal. A disloyal minister deserves death, and imprudent speech also deserves death. Even so, I wish to say all that I know, and let Your Majesty judge my offense.
"I hear that the states are secretly aligning Yan and openly courting Wei, linking Chu and binding Qi, gathering what remains of Han to form a coalition, and preparing to march southwest against Qin. I cannot help but laugh at this.
"There are three paths to destruction, and the world is walking all of them: those who send disorder against order perish; those who send crookedness against straightness perish; those who send defiance against compliance perish.
"Now the other states' treasuries are not full, their granaries are empty. They mobilize their entire populations and field armies of millions, with blades ahead and executioners behind — yet their soldiers all flee and cannot die for their rulers. Is the fault the people's, that they cannot die? No — it is their leaders', who cannot make them. Rewards are promised but not given; punishments are announced but not enforced. When rewards and punishments are not enforced, the people will not die for you.
"Now Qin issues orders and enforces rewards and punishments without fail. Qin's people emerge from their parents' arms never having seen an enemy, yet when they hear of battle they stamp their feet, bare their chests, charge naked blades, and tread on hot coals — those who choose death in the front ranks stand shoulder to shoulder. Choosing death and choosing life are not the same, yet the people do it because they prize the chance to fight.
"One can defeat ten; ten can defeat a hundred; a hundred can defeat a thousand; a thousand can defeat ten thousand; ten thousand can defeat All-Under-Heaven.
"Now Qin's territory, trimmed and squared, extends thousands of li. Its elite troops number millions. Qin's system of orders, rewards, and punishments, its terrain advantages — nothing in the world compares. With these, All-Under-Heaven is not too much to conquer and possess. Qin has never fought without winning, never attacked without taking, never confronted an enemy without breaking it. It has opened up thousands of li of territory — these are enormous achievements.
"Yet the armor is battered, the soldiers are weary, stores are exhausted, fields lie fallow, granaries are empty. The neighboring lords do not submit. The name of hegemon-king is not achieved. There is only one reason: your advisors have not been fully loyal.
"Let me speak of the past. When Qin fought Chu, smashed its forces, stormed Ying, and took Dongting, the Five Capitals, and the lands south of the Yangtze — the King of Chu fled east and hid at Chen. At that moment, had Qin pursued with its army, Chu could have been swallowed whole. To swallow Chu meant gaining its population and its territory — using that strength against Qi and Yan in the east and dominating the Three Jin in the center. One stroke, and the name of hegemon-king could have been achieved; all neighboring lords would have paid court. But the advisors did not pursue it. They withdrew the army and made peace with Chu. They let Chu reassemble its lost state, gather its scattered people, restore its altars and ancestral temples — and then lead All-Under-Heaven west to oppose Qin. This was the first time the path to hegemony was lost.
"When the states united and camped at Hua, Your Majesty defeated them by stratagem. The army reached the walls of Daliang and besieged it for weeks — Daliang could have been taken. Taking Daliang meant conquering Wei. Conquering Wei would have broken Chu and Zhao's resolve. With Chu and Zhao's resolve broken, Zhao would have been in peril, and Chu isolated. In the east you could have dominated Qi and Yan; in the center you could have controlled the Three Jin. One stroke for hegemony. But the advisors withdrew the army and made peace with Wei. This was the second time.
"Earlier, when the Marquis of Rang governed Qin, he used one state's troops trying to achieve two states' objectives. The army was permanently exposed abroad while the people were exhausted at home. The name of hegemon-king was not achieved. This was the third time.
"Zhao is a central state with a mixed population — its people are capricious and hard to control, its orders unenforceable, its rewards and punishments unreliable, its terrain unfavorable. The leadership cannot fully mobilize its people. It bears every mark of a doomed state, yet neglects its people's welfare. Zhao committed its entire population to camp at Changping to contest Han's Shangdang. Your Majesty defeated them by stratagem and took Wu'an.
"At that moment, Zhao's upper and lower ranks were estranged, the noble and base did not trust each other. Handan should not have held. Had you taken Handan, controlled Hejian, then marched west to take Xiuwu, crossed the Yangchang Pass, and accepted the surrender of Dai and Shangdang — Dai's thirty-six counties and Shangdang's seventeen counties, without deploying a single suit of armor, without troubling a single citizen, would all have been Qin's. Dai and Shangdang would have fallen to Qin without a fight. Dongyang and the lands beyond the river would have reverted to Qi without a fight. Huichi and everything north would have gone to Yan without a fight.
"Taking Zhao would have meant Han's destruction. With Han gone, Chu and Wei could not stand alone. In one stroke: destroy Han, cripple Wei, uproot Chu, weaken Qi and Yan in the east, breach the White Horse Ford to flood Wei's lands. One stroke and the Three Jin are finished, the coalition is defeated. Your Majesty could have folded his arms and waited while the world submitted — the name of hegemon-king would have been achieved.
"But the advisors did not do it. They withdrew and made peace with Zhao. With Your Majesty's brilliance and Qin's military strength, the hegemonic enterprise, the honored territory — none of it could be obtained. Instead Qin was cheated by a state that should have perished. This is the incompetence of your advisors.
"Moreover, when Zhao should have perished but did not, and Qin should have become hegemon but did not — the world took the measure of Qin's advisors once. When Qin then threw all its troops at Handan and could not take it, abandoned its armor in fury, and retreated trembling — the world took the measure of Qin's strength twice. When the army withdrew and rallied at Li, and Your Majesty concentrated forces for another battle but could not win a decisive victory, and both sides withdrew exhausted — the world took the measure of Qin's strength a third time.
"Internally they gauge our advisors; externally they test our military power. By this reasoning, I believe the coalition may not be so difficult to form after all. Internally our armor is battered, our people are sick, our stores exhausted, our fields fallow, our granaries empty. Externally the world's resolve is firmly united. I beg Your Majesty to think on this.
"Yet I have also heard: trembling with care, more cautious each day. If one is cautious about the Way, All-Under-Heaven can be possessed. How do I know this? King Zhou of Shang was Son of Heaven, commanding a million armored troops. His army drank the Qi Valley dry on one side and stopped the Huan River's flow on the other — and with that force he opposed King Wu of Zhou. King Wu led three thousand men in plain armor. In one day's battle he destroyed Zhou's state, captured his person, seized his territory, and took his people. The world was shaken.
"Zhi Bo led the combined armies of three states to attack Lord Xiang of Zhao at Jinyang, diverted rivers to flood the city, and after three years the walls were about to fall. Lord Xiang consulted his tortoise shells, cast his divination stalks, read the omens to determine which state to approach — and sent Zhang Mengtian. Zhang went out in secret, reversed Zhi Bo's alliance, won over two states' armies, and attacked Zhi Bo, capturing him and establishing Lord Xiang's glory.
"Now Qin's territory extends thousands of li, its elite troops number millions, and its system of commands, rewards, and punishments, its terrain advantages, are unmatched in the world. With these, All-Under-Heaven can be conquered and possessed.
"I risk death to present myself before Your Majesty. I will explain how to shatter the world's coalition, conquer Zhao, destroy Han, vassalize Chu and Wei, befriend Qi and Yan, achieve the name of hegemon-king, and make all neighboring lords pay court.
"If Your Majesty will try my proposals and in one stroke the coalition is not broken, Zhao is not taken, Han does not fall, Chu and Wei do not submit, Qi and Yan do not befriend us, and the name of hegemon-king is not achieved — then let Your Majesty behead me and parade my corpse through the state as a warning to all who scheme disloyally for their sovereign."
The King of Qin said: "I have heard of this too late. Let us put your plans into effect."
In the end Zhang Yi was employed, and Su Qin's coalition dissolved.