君子敬以直内，义以方外，敬义立而德不孤。《周易 卷一》（註1）

A man of noble character upholds respectfulness within, and demonstrates righteousness in dealing with others. As such, his respectfulness and righteousness are established and will win friends all over around him. -- 《Zhou Yi, Vol. 1》

Confucius said， " If those in power are able to conduct their own actions justly and properly, what difficulty will they have in running the government? If they could not rectify themselves, how could they redress others?" --《The Analects Vol. 9》

（註1）《易經》据说有三种：连山、归藏和周易，合称三易。 《连山》和《归藏》已经失传，《周易》是唯一有传至后世的文献。相传《周易》是依循周文王主编《易》的著述而来，成书大约在西周时期。因此《易经》通常就是指《周易》。

（註2）見《主者，国之心也》篇（註2）。