Who said that women are inferior to men?

"Grandpa Qian, what do you think a man can do? besides getting married and having children, what can't I do?" Gu Xin asked in a serious tone.

"This ..." Old master Qian paused.

"If the Imperial court allowed women to participate in the Imperial examinations, I believe that I would be able to reach the stage of the general examination. I might not be able to get into the top three, but I would be able to get into the top two. I've been listening to my father's lectures for Enzi, and I know how to write the articles that Enzi knows."

"Men go to the battlefield to protect their country. However, in the great Zhou Dynasty, there is also a group of women who have participated in many battles. Women aren't inferior to men!"