《资治通鉴·秦纪·秦纪一》
不残杀老弱，不践踏庄稼，不追捕不战而退的人，不赦免相拒顽抗的人，不俘获跑来归顺的人。
不杀老弱，不猎禾稼，服者不禽，格者不赦，奔命者不获。
Do not slaughter the old and weak, do not trample the crops, do not pursue those who retreat without fighting, do not pardon those who resist stubbornly, and do not capture those who come to surrender.