《战国策·燕一·权之难燕再战不胜》
赵国没有出兵援助。郭任对燕昭王说： 不如割让土地向齐国求和，赵国一定会来援救我们。
哙子谓文公曰： 不如以地请合于齐，赵必救我。
Zhao did not send troops to help. Guo Ren said to King Yan Zhao: It is better to cede land and ask Qi for peace. Zhao will definitely come to our rescue.