Supergirl, Season 1

Supergirl:
I just... we both know what I'm up against, and I will save the Earth, I promise you that. I just don't know if I'll make it out alive. I didn't say the things that needed to be said when I left Krypton, and I wanted to make sure I said them now - just in case.

Hank:
I was exactly where you are, Kara. And when I was, you told me to never give up.

Supergirl:
I'm not giving up. But my mother didn't send me to Earth to fall in love with a human, have children, live in a house with a white picket fence. She sent me here to protect Kal-El. And now I will use my powers to protect the Earth. And if I die achieving that, I'm at peace with it. I'll join my mother. We'll be together in Rao's light.