Chapter 14, Part 36 - Confucius

Some one said, "What do you say concerning the principle that injury should be recompensed with kindness?"

The Master said, "With what then will you recompense kindness?"

"Recompense injury with justice, and recompense kindness with kindness."
~ James Legge translation via The Internet Classics Archive ~

Go here to read the introductory post to this serialized version of the Analects of Confucius.