Hound: Got some bad news Cade, I'm out of ammo, out of ideas.
Joshua Joyce: Oh my god! How do you say 'get the fuck out of the way' in Chinese!?
Cade Yeager: Are we safer on our own, or are we safer with them?
Cade Yeager: Will we see you again?
Optimus Prime: Cade Yeager, I do not know. But when you look up to the stars, think of them as my soul.
Cade Yeager: These alien guns kick ass!
Optimus Prime: Legendary warriors - the powers that created us, now want us all extinguished. We must join forces or forever be their slaves. So today you stand with us; or you stand against me!
Lockdown: You see my face, your life is done!
Optimus Prime: After all we have done, humans are hunting us. But I fear we are all targets now.
Optimus Prime: This is not war... It's human extinction!
Optimus Prime: Only together can we survive; let me lead you.
Joshua Joyce: We can make you now. Don't you get it? We don't need you anymore.
Optimus Prime: Autobots, we're going to prove who we are and why we're here.
Crosshairs: You just wanna die for the guy, that's leadership or brainwashing or something.
Drift: No, that's Optimus Prime.
Joshua: I can't believe I'm putting my life in your hands!
Cade Yeager: You want the alien gun? Take it!
Joshua: No, I don't want the alien gun!
Chosen answer: It's not explained where he is. The most likely assumption is that he is probably married to Carly living somewhere. He is not in the movie because it is mainly the choice of the writers to not have him in the movie.
Casual Person