Life is a marathon, not a sprint Barry. Slow down and enjoy it.

Diggle

It's time for The Flash to vanish in crisis.

Iris: Our love story never ends Barry, even with Crisis.
Barry: Iris it’s inevitable.
Iris: Maybe, but whether you vanish or…worse I’m going to be right there with you. Right there till the very end, okay? Because the only thing more inevitable than crisis is us.

So I can avoid what scares me the most. I’ll never get over this.

Sherloque: The Flash is already on the scene so for all we know the problem has already been solved.
The Flash: Guys, I have a problem.

You talk about making decisions based on emotion. Look in the mirror.

Barry: Damnit Iris she lied to us for months!
Iris: Yea and she explained why.
Barry: That she was working with Thawne?! That honestly doesn't bother you?
Iris: No, it doesn’t.
Barry: Maybe if he killed your mother in front of you, you’d feel differently.
Iris: Maybe you feeling differently Barry, is why we should have made this decision together.

Iris: We have been through so much crap. We have been through so much therapy, but you are still making decisions based on your emotions!
Barry: Because I’m right this time!
Iris: Flashpoint? Going to the speed force and leaving me? Were you right those times too?

I’m a father too, and I have a daughter who I love more than I ever thought possible. I would do anything for her and I know you would do anything for [Grace]. So do it.

We're not Gods, Nora. We've just been given extraordinary abilities.

Caitlin: He's the only family I have left.
Barry: But Caitlin, that's not true. We're your family too. And we're only asking you to keep an open mind because we care about you. Especially Cisco.

Cisco: Iris West-Allen, I know badassery when I see it. And that was raw, unrefined, cage-free, non-GMO badassery.
Caitlin: You dove off a building!
Barry: To save me!
Iris: Yeah, I guess I kinda did.

The Flash Quotes

Barry's real superpower isn't speed, it's hope. The kid's got an endless reservoir. Thinks it's all gonna work out!

HR

DeVoe: You beat me!
Barry: No. We beat you.