Wally: Man, that was so dope. How do you stay so calm? You're like scary calm in the middle of a fire.
Barry: It's just experience, Wally. That's why it's important for you to shadow me for a while and try to learn everything I know.
Wally: And then I get to kick some ass.

I'm sorry...did you make a hologram of me?

Cisco

See, I'm living with someone now. So I can't have criminals constantly interrupting our alone time.

The Flash

HR: Wallace, BA. You're supposed to be dressed for the museum opening.
Wally: We're speedsters. We have time.
HR: Nobody likes a bragger.
Cisco: Yeah, but we were actually talking about something important before you showed up.
HR: You..okay...you clean up well.
Cisco: Thank you.
HR: I like the way you dress.

Barry, when your mom was murdered, Joe and Iris, they took you in. Cisco, when Dante died, I slept on your couch to keep you company. The things we see. The things that we face. No one can do this alone. Trying is the biggest mistake that you can make. He hasn't told anyone that Barry's the Flash. I think we can give him a chance.

Caitlin

I swear on both my parents' lives that I will protect you.

Barry

Hang on, McFly. I'm about to vibe you back to the future.

Cisco

Iris: Guys, my future isn't the only one we need to change.
Barry: These headlines. They tell us what happens in the future where Caitlin becomes Killer Frost and Iris dies.
Caitlin: If we can change the headlines, that means we can change the future.
Cisco: That's right. Challenge accepted.

The Flash Season 3 Episode 10 Quotes

I'm sorry...did you make a hologram of me?

Cisco

Wally: Man, that was so dope. How do you stay so calm? You're like scary calm in the middle of a fire.
Barry: It's just experience, Wally. That's why it's important for you to shadow me for a while and try to learn everything I know.
Wally: And then I get to kick some ass.