Learning from others or things refers to learning lessons by comparing ourselves with others as a mirror, and comparing other people's experiences or lessons for us to learn from, so as to learn from each other's strengths.

In, a commonly used Chinese character, pronounced "nian", first appeared in Oracle Bone Inscriptions. Its original meaning is that the year is ripe and the grain is ripe, that is, "Shuo Wen Jie Zi": "The year is ripe and the grain is ripe." It is equivalent to a year's harvest, year, festival, year and year, and it is also a time unit, which refers to the period of about 365 and 1/4 solar days required for the earth to orbit the sun once.