《宋书·列传·卷七十三》
正是说的最后一段的困难。我私下认为这话有些偏颇，现在才知道说得确实正确。
愚心常谓为虚，方今乃知其信。
This is what the last part is -- which is the most difficult. I secretly considered these words to be biased, but only now do I realize that they really are true.