《隋书·列传·卷五十》
虔通说： 我的孩子已经长大，现在的确自身难保，正担心早晚被杀，但无计可施。 
虔通曰： 我子弟已壮，诚不自保，正恐旦暮及诛，计无所出。 
Qientong said: “My children are already grown up and now it really is difficult for me to keep myself safe. I am constantly worrying that I will be killed sooner or later, but there is nothing to be done.”