They are praising Gu Jinyu for her exceptional intelligence!
Gu Jinyu bowed and said, "It's all thanks to grandmother's great teaching. Since my childhood, I've enjoyed my time under her tutelage, where I learned by looking and hearing. My current knowledge is all due to her efforts. She didn't show favoritism due to my being a girl; she invited many distinguished scholars to tutor me. Without grandmother, there would be no Countess Jin Yu."
Gu's Dowager Lady felt thrilled by these words.
Indeed, the Dowager Lady deeply loved Jin Yu, but she could not compare this love with that for her three legitimate grandsons. The scholars were invited by Marquis Gu, and all the old lady had done was not objecting.
But Jin Yu attributed this credit to her. This showed her filial devotion.
Unlike that wild girl who was raised in the countryside; she has been in the Capital City for so long, yet she hasn't visited to pay her respects.