《史记·七十列传·苏秦列传》
 我听说越王勾践仅用三千疲惫的士兵作战，就在干遂活捉了吴王夫差；周武王只用了三千士兵，三百辆蒙着皮革的战车，在牧野制服了商纣：难道他们是靠着兵多将广吗？
 臣闻越王勾践战敝卒三千人，禽夫差於干遂；武王卒三千人，革车三百乘，制纣於牧野：岂其士卒众哉，诚能奋其威也。
I heard that The King of Yue Goujian captured the King of Wu Fuchai alive in Gansu with only three thousand tired soldiers; King Wu of Zhou defeated King Zhou of Shang in the Battle of Muye with only three thousand soldiers and three hundred armored chariots. Was that because they had enough soldiers and generals?