I need a man, a partner, who will choose me with a full heart. Go back. Help her fight Reign. If you stay, then that's your destiny. If you return, I'll know you have no doubts.

Imra

Mon-El: Why would you bug them?
Brainy: I grew quite fond of Supergirl and her compatriots. I wanted to keep tabs.

Winn: Did Mon-El tell you about my dirt collection?
Brainy: No, I ran a diagnostic of your personality, and calculated with a 98..7% certainty that you either collected dirt or New York Mets baseball cards.

Winn: J'onn's going to be sad he missed you.
Mon-El: Tell him it's okay. I'll see him in a thousand years.

Brainy: Are you all right?
Winn: Yeah, why wouldn't I be?
Brainy: Well, you spent an exceedingly long time in the bathroom.
Winn: This isn't a bathroom.

Lena: Oh right, you don't like secrets.
Supergirl: Nope, I don't.
Lena: Good, what's your real name?

Is this what it's like when humans exercise? This is terrible. Why would you ever exercise?

Kara

Brainy: Would you like me to count to three?
Lena: Will it help?
Brainy: No, not at all.

Brainy: Once I induce transmission, your minds will be immediately beamed into this dark valley.
Alex: Is it gonna hurt?
Brainy: The chances are better than 50%.
Alex: That's comforting.
Brainy: Really? I didn't think so.

J'onn: There's still one big hole in this plan. How do we send Supergirl back to this valley?
Kara: We fight fantasy with sci-fi.

Pestilence: You honestly thought you could talk me into being redeemed? You're such a child. Words will never hurt me.
Kara: What about sticks and stones?

Kara: Do you think I'll get through to Pestilence?
J'onn: There's no way of knowing. You just have to try.
Kara: That's not what Yoda would say.

Supergirl Season 3 Quotes

Reporter: Does President Marsden believe climate change is real?
Cat: Yes, Carl, as a matter of fact she does. She also believes that two plus two equals four, and that the Earth is round, because the President is not a moron.

Winn: I thought it was bad when she skipped pizza night, but skipping free apps? I mean, come on. These are like the beginning of the dark days.
J'onn: Hey, come on, grief doesn't have a deadline.
Winn: Look, I know, but I mean, she goes from being little miss sunshine to, well, Alex basically.
Alex: What? I'm not like that.
J'onn: Oh come on Alex, your unrelenting seriousness is one of your best qualities.