Joe West:
Joe West: You always want to be the person who sees the best in people. I have been a cop for twenty-five years. All I can see is the flaws, the lies, the dark thoughts that people think I don't see. I wish I could be you. As fast as you are, THAT is your real power. Don't let Wells take that from you. I don't know why he's helping us. All that matters is that he is.
Joe West: When you first moved in with us, I thought it was gonna be too much - I'm already a single dad, finances were tough, and you were a little boy who just lost his mother - but, man, was I wrong. Within two weeks you had changed the whole dynamic of the house. Suddenly the house was filled with this... light... this energy. I mean, you brightened up everything. You've seen more darkness than any man will in a lifetime, and you never let it dim your soul. So there I was, thinking that I'm changing your life by taking you in, but the truth is you changed mine. So, don't lose that light now, Bar. The world may need the Flash, but... I need my Barry Allen.
Joe West: Son, I love, but ain't nobody feeling Team Kid Flash.
Joe West: You're asking your adopted father for advice about being in love with his daughter, who just happened to be dating his partner? Things have gone way past complicated.

Leonard Snart
Leonard Snart: Doesn't matter. There are only four rules you need to remember: make the plan, execute the plan, expect the plan to go off the rails, throw away the plan. Follow my lead and you'll be fine.
Leonard Snart: [laughs] It's true I did, but here's the thing: I'm a criminal and a liar and I hurt people and I rob them. What did you expect me to do? Not be what I am? I saw an opportunity to turn things to my advantage and I did. Who you're really mad at is yourself. This is on you, Barry.
Leonard Snart: The same reason you keep running after guys like me, the adrenaline, the thrill of the chase. I love this game. And I'm very good at it.
Leonard Snart: The cops will never hassle a dad buying diapers in the middle of the night.(Line break) Raymond, you don't break into a candy store and steal one gumball.

Harrison Wells:
Dr. Harry Wells: How dare you, sir. This is not a riddle. This is a complex algorithmic cryptogram designed to test a deductive reasoning, IQ, problem-solving skills, anything that our team will need to combat threats, meta-human or otherwise.
Dr. Harrison Wells (Wellsobard) Listen to me, Barry. Breathe. Breathe. Feel the air. Feel that wind on your face. Feel the ground, your feet lifting you up, pushing you forward, and the lightning - Barry, feel the lightning. Feel its power. It's electricity pumping through your veins, crackling through you, traveling to every nerve in your body, like a shock. You're no longer you now. You're part of something greater, part of a speed-force. It's yours. Now do it.
H.R. Wells: Oh, not just good. It's great! And why is that? Because I'm finally ready to announce that the new S.T.A.R. Labs museum is ready for its opening; soft opening. So come, let's take the tour.

Damien Darhk:
Damien Darhk: I wanna be clear about something. I have shown you repeatedly that you cannot beat me. You saved my family, so I will give you a few weeks to spend with yours. Enjoy your time. What's left of it
Damien Darhk: Andy here might have mentioned that his brother, John, worked for the Green Arrow or should I say, Oliver Queen. Oh, oh, oh, see, I know what you're all thinking, but no, he didn't tell me. It was really just a hop, skip and a jump from the whole Diggle connection to you, to your little sister, to your ex-girlfriend, but when you came to rescue that boy William, that look on your face, that was a father's look. I should have recognized it there and then.
Damien Darhk: That is why I did this. Humanity is feckless, and I wanted to cleanse it or a millennia worth of rot it has been infected by, and I will do it!

Malcolm Merlyn:
Malcolm Merlyn: Your mother built her clinic in The Glades because she wanted to save this city. It can't be saved. Because the people there don't want it to be saved.
Malcolm Merlyn: I thought of you a son once, Oliver. I had more common with you than my own blood, but that's not the reason why I'm going to kill you. Neither the fact that you are my daughter's brother. The reason you get to live is because death would be a mercy compared to the debt I now owe you.
Malcolm Merlyn: When you have killed 503 people including your own son, you tend not to worry about scales, and don't tell me it won't stop the pain and it won't bring her back because you don't understand! If I had taken care of him back then, it could all be different. The League, the Undertaking, Tommy... Every choice I have made since my wife died.
Malcolm Merlyn: That's remarkably ruthless and cold blooded. I approve.