Mencius - Book 4, Part 2, Chapter 29B

'Yü thought that if any one in the kingdom were drowned, it was as if he drowned him. Chî thought that if any one in the kingdom suffered hunger, it was as if he famished him. It was on this account that they were so earnest.

If Yü and Chî, and Yen-tsze, had exchanged places, each would have done what the other did.

'Here now in the same apartment with you are people fighting: you ought to part them. Though you part them with your cap simply tied over your unbound hair, your conduct will be allowable.

'If the fighting be only in the village or neighborhood, if you go to put an end to it with your cap tied over your hair unbound, you will be in error. Although you should shut your door in such a case, your conduct would be allowable.'
~ James Legge translation via nothingistic.org ~

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