Learn from others
Chinese idiom, Pinyin is t ǎ ol è izh ī Yu á n, which means to explore the origin by analogy. From the book of living with bamboo slips.
The origin of Idioms
According to Zhang Binglin's book of living with bamboo slips, "it's necessary to check the ceremony and make clear what they do, so that later generations can learn from others and never forget the national heritage."
Idiom usage
As a predicate or object; used in dealing with affairs.
Learn from others
Cast a good suit and sell a bad one - zhù jiǎ xiāo gē