"people are not sages, and practice makes perfect." Which one is "familiar"? What are their traditional Chinese characters?

Who is it? Everyone is not a saint. To err is human.

Source "Zuo Zhuan Gong Xuan Two Years"

No one has made a mistake, but it's no big deal that he can correct it after making a mistake.

Interpretation: "No", no, who is it? Ordinary people are neither saints nor sages. Who can have no shortcomings?

Who is the word "who" in classical Chinese? To err is human. Who can not make mistakes?