Emperor Taizong famously said, "Only by learning from others can we know the gains and losses." This can be associated with the words of Confucius in the Analects of Confucius: choose good and follow it, but change it without mercy.

"Choose what is good and follow it, and change what is not good" is to choose the advantages of others to learn and correct their shortcomings (if I have them). From The Analects of Confucius? Just say it.

Extended data:

Confucius suggested that we should listen more and see more things we don't know, study hard and oppose the practice of creating things out of thin air and knowing nothing. This is what he demands of himself and his students.

The phrase "choose good and follow it" shows the spirit of Confucius' self-cultivation and humility. It includes two aspects: on the one hand, it is the spirit of being open-minded and eager to learn; On the other hand, people who have not changed well should take warning from their shortcomings and reflect on themselves. This is the spirit of self-cultivation. In this way, no matter how good or bad people get along, they can be teachers.

Baidu Encyclopedia-Choose its goodness and follow it, and change its inferiority.