Mencius - Book 4, Part 2, Chapter 28A

Mencius said, 'That whereby the superior man is distinguished from other men is what he preserves in his heart; namely, benevolence and propriety.

'The benevolent man loves others. The man of propriety shows respect to others.

'He who loves others is constantly loved by them. He who respects others is constantly respected by them.

'Here is a man, who treats me in a perverse and unreasonable manner. The superior man in such a case will turn round upon himself "I must have been wanting in benevolence; I must have been wanting in propriety; how should this have happened to me?"
~ James Legge translation via nothingistic.org ~

Go here to read the introductory post to this serialized version of the Works of Mencius.