Shu-sun Wu-shu observed to the great officers in the court, saying, "Tsze-kung is superior to Chung-ni."Go here to read the introductory post to this serialized version of the Analects of Confucius.
Tsze-fu Ching-po reported the observation to Tsze-kung, who said, "Let me use the comparison of a house and its encompassing wall. My wall only reaches to the shoulders. One may peep over it, and see whatever is valuable in the apartments.
"The wall of my Master is several fathoms high. If one do not find the door and enter by it, he cannot see the ancestral temple with its beauties, nor all the officers in their rich array.
"But I may assume that they are few who find the door. Was not the observation of the chief only what might have been expected?"
~ James Legge translation via The Internet Classics Archive ~