J'onn and Kara in “Unfinished Business”

J'onn

I can face down the toughest adversaries without fear, but talking to my father about this (his dementia).... [regains his composure] I don't want to take away more from him than he's already lost. I just got him back. The practice of ta'ha kareek keeps him as close to the man I've always known. I... I don't want to give that up.

Kara

My uncle Jor-El used to say "The son becomes the father, and the father the son."