《宋史·列传·卷一百六十六》
凡是现在有的内忧和外患，都是掌握大权的宰相三十年酝酿成的，好比养护痈疽，到了一定的时候就该发作了。
凡今日之内忧外患，皆权相三十年酿成之，如养护痈疽，待时而决耳。
All the internal and external problems of the present day are the result of thirty years of fostering by grand ministers in power, and are similar to an ulcer or boil which, after it has been festering for some time, inevitably bursts and causes death.