《旧唐书·列传·卷二十一》
现在说某人是善人，又顾虑他不可信任，这和竖立一根直木却怀疑它的影子不直有什么不同呢？
今谓之善人矣，复虑其有不信，何异夫立直木而疑其影之不直乎？
Now it is said that a person is a good person, and it is also considered that he is not trustworthy. What is the difference between erecting a straight wood and doubting that its shadow is not straight?