Chapter 10, Part 11 - Confucius

When he was sending complimentary inquiries to any one in another state, he bowed twice as he escorted the messenger away.

Chi K'ang having sent him a present of physic, he bowed and received it, saying, "I do not know it. I dare not taste it."
~ James Legge translation via The Internet Classics Archive ~

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