《史记·七十列传·苏秦列传》
如果韩、魏战胜了秦国，那么自己的兵力要损失一半，四面的国境无法保卫；如果作战不能取胜，那么国家接着就陷入危亡的境地。
韩、魏战而胜秦，则兵半折，四境不守；战而不胜，则国已危亡随其後。
If Han and Wei defeated the State of Qin, their own troops would lose half of their strength and they would not be able to defend their borders on four sides; if they could not win the battle, then their state would fall immediately into danger and calamity.