- Bumblebee: [Optimus stabs at Bumblebee, barely missing his head] "I-I am Bumblebee, your oldest friend. Optimus. I would lay down my life for you."
- [Cogman plays an organ]
- Sir Edmund Burton: Stop that!
- Cogman: I was trying to make the moment more epic.
- Optimus Prime: Knights, Autobots. This cannot and will not be the end. To save earth and her people we are going to steal Quintessa's staff. Only you, Vivian, can take it back. I will lead the way into her chamber. And when the account of the ages is etched into the cosmos, let those who exist long after us know that this was our finest hour!
- [blasts into the sky]
- Crosshairs: Love that guy. Goosebumps every time.
- Hound: I never got to say hi.
- Sir Edmund Burton: It has been said throughout the ages, that there can be no victory, without sacrifice.
- Optimus Prime: [attacks Infernocus] You ugly menace!
- [slices apart the combiner]
- Optimus Prime: Did you forget who I am?
- [decapitates all the Infernocons]
- [last lines]
- Optimus Prime: At the heart of every legend, there is truth: a few brave souls unite to save the world. We can be heroes in our own lives, every one of us, if we only have the courage to try. Our fates were always intertwined, but now our worlds are joined as one. We need to repair our planets, work together, if we wish to survive. A dangerous secret is buried deep inside the Earth. There is more to this planet than meets the eye. I am Optimus Prime, calling all Autobots: It is time to come home.
- Cade Yeager: What are you doing?
- Desi: Dying!
- Cade Yeager: It was a bean bag!
- Desi: A bean bag? I felt it go through me!
- Sir Edmund Burton: [after Bulldog fires a warning shot at Cade and co] We have guests! What's wrong with you?
- Bulldog: I got bits falling off!
- Bumblebee: [Through radio] What the hell?
- Sir Edmund Burton: I'm awfully sorry about that but, you see, he still thinks it's 1918 or 1915, 'Robot Dementia'. It's not all pretty.
- Cade Yeager: Are you dragging me into some transformer retirement home?
- Cogman: Mm-hmm!
- Cade Yeager: Somebody better start talking or I'm outta here!
- Sir Edmund Burton: Yes, but you want to know, don't you? why they keep coming here. to earth, right?
- [Hot Rod is seen speeding down the lane]
- Sir Edmund Burton: Ah, I do so love perfect timing!
- [Hot Rod transforms and throws out Vivian, she tries to attack him]
- Hot Rod: Little lady, no!
- [Gets hit by the club, the golf head coming off on impact]
- Hot Rod: Ow!
- Cade Yeager: So, is this a kidnapping sort of situation or her first Transformer experience?
- Sir Edmund Burton: Well, it's both really.
- Hot Rod: She's very difficult!
- Sir Edmund Burton: One hundred billion trillion planets in the cosmos. You want to know, don't you, why they keep coming here?
- Quintessa: There is a way to heal your world. My power of creation, the staff, was stolen from me by my twelve Guardian Knights. They betrayed me, and hid it on Earth... gave it to your precious humans. The staff is the only way to bring life back to Cybertron. You are going to find it for me. Do you seek redemption, Prime? Do you?
- Optimus Prime: My maker, I do.
- [Bee vs Barricade]
- Cade Yeager: You better got some skills!
- [Bee pulls out his cannon, were Cade is seated, and blasts Barricade]
- Cade Yeager: What the hell? Are you out of your mind?
- Megatron: [holds Starscream's head] The end is near, my old treacherous friend. What a shame you'll be unable to see it.
- [Bumblebee is blown apart... he still functions]
- Santos: What is that?
- Cade Yeager: That was a mistake.
- [Bee puts himself back together]
- [Hot Rod tries to reason with a terrified Vivian]
- Cade Yeager: Is this a kidnapping sort of situation, or is it her first Transformers experience?
- Sir Edmund Burton: It's both, really.
- Colonel William Lennox: [from trailer] The operation is over!
- Cade Yeager: But, we are not giving up on Prime, okay?
- Optimus Prime: [to Quintessa] Say hello to my friend, Bumblebee!
- [Bee appears behind Quintessa and blasts her]
- Bumblebee: I sting like a bee!
- Sir Edmund Burton: It started as a legend, one of the greatest of all... For a thousand years, weve kept it hidden, to protect Earth from what is expected to arrive...
- Cade Yeager: [to Isabella] You got a family now, they're gonna take care of you.
- Crosshairs: [to Izzy] Listen up, little miss sunshine - I'm in charge now. Just don't expect any bedtime stories.
- Colonel William Lennox: What are you looking for, Megatron? What do you want?
- Megatron: What everyone wants: to go home!
- Sir Edmund Burton: [mortally wounded] I had it, Cogman... I had my moment...
- Cogman: This is the hardest part of my duty: watching all my charges leave.
- Sir Edmund Burton: Thank you. Carry on.
- Cogman: Of all the Earls I have served with, you were the coolest.
- Izabella: Your daughter, what would you say to her?
- Cade Yeager: Brush your teeth, work hard, stay away from any boy in a band. Especially a drummer.
- Merlin: All right, I am what they say: I am a liar, a charlatan! I've deceived my whole life! But if I could, for one moment, change this world for the better, I would give up everything! Everything! I'd give up drink, money, wom... drink and money!
- Vivian Wembley: [on Hot Rod] Is he French?
- Sir Edmund Burton: No, he just likes the accent.
- Hot Rod: Non! No no no, I hate the accent! But I can't get rid of it! I'm stuck with the accent!
- Quintessa: Your war doomed Cybertron!
- Optimus Prime: Megatron started the war!
- Quintessa: You destroyed your world, you fool!
- Quintessa: Optimus, it is time you knew the truth. The place you call Earth has another name: Unicron.
- Optimus Prime: Earth... Unicron? Cybertron's ancient enemy?
- Quintessa: Yes. You are going to kill him. With my staff, we will drain the very life from Unicron. Earth will die. And your world will be reborn... Nemesis Prime.
- Optimus Prime: [his eyes turn purple] I will fight anyone who stands in my way.