It has!
“What’s a warrior?
A warrior still.”
Is from that ep.

 

"Sometimes it is better to be known by one's enemies." ~Blitzwing

 

Another one from the 2007 movie,

Megatron: "Mine!.....ALLSPARK!...I'LL KILL YOU!!

Bet that freaked/scared a lot of little kids.

 

Shockwave: "I know I can't catch you... but I can trap you."

So did Powerglide to Astoria.

 

"Predaking has the power! He needs no more!"
"Oh no, we're trapped! We'll be killed!"
"Remarkable. The woman is clairvoyant!"

"The Matrix did this to you? Then I have to take it back. I see now it is my obligation. I belong to it... as much as it belongs to me!
Senketrix! Life-fibre synchronize!"

 

"I come in peace."
"You'll be leaving in pieces!"
There wasn't nearly enough Megatron vs Rhinox in Beast Wars.

 

"We're too late, Galvatron! Scourge has already launched his assault!"
"He doesn't know the meaning of the word assault, but he's going to learn!"

 

Dinobot :"Do not fire, Megatron! I have a HOSTAGE!"
BW Megatron: "Why, so you do..."

 

Jazz: "You want a piece of me!?"
Megatron: "No. I want two pieces!"

 

"My face is my warrant."

 

"Huh, EMP Generator, right? I'm not good with names and faces. But I never forget a trophy."

"Autobots. Decepticons. Like little children, always fighting, making a mess of the universe. Then I've got to clean it up."

"Love the new look! Goodbye."

"I, I won't be the last, Megatron! Someone will always be there to challenge your leadership!"
"Maybe. But they will suffer the same fate as you."

"At last we take our rightful places, Optimus. As GODS, wielding the power of the cosmos!"
"I am but a soldier, Megatron. And YOU, are a prisoner of your own twisted delusions!"

 

War Dawn has an absolute cracker of an exchange.

Optimus Prime (battlefield debut): 'You've caused enough destruction for one day, Megatron'

Megatron: 'I haven't even started..'

*BLAM BLAM BLAM, but his fusion cannon blasts just bounce off Prime's shiny new tits*

Megatron: 'You..! Who are you?!'

Optimus Prime: 'Your worst nightmare'

 

"I have better things to do tonight then die" - Springer

"Old timer? That's something you'll never be if you don't get back to the city" - Kup

"I have nothing but contempt for this court" - Hot Rod

"and I have my honor" - DB2

and basically everything Primal says.

 

It must have been mentored already...
Megatron: "Why throw away your life so recklessly?"
I didn't care much for Primes response:
"That's a question you should ask yourself, Megatron."
It's kind of like, "I know you are but what am I?"

 

Do comics count?

Orion Pax, "Question one: In whose interest do you exercise your power? Question two: To whom... are you accountable? AND THREE: HOW CAN WE GET RID OF YOU?"

 

"You see, it takes patience to make a man - the patience to watch and wait... To protect all of us quietly, for God and country, without any recognition at all. There are no good aliens or bad aliens, Yeager; it's just us and them... and you chose them."

 

"Tornedron! Face Predaking... To the end!"

Chills every time.

 

Transformer The Movie : Optimus Prime To Megatron - YOU who are without MERCY now beg of IT?!.

Transformers 2007 : Optimus And Co. - Were We so Different?. They are a young Species. They have much to Learn. But I have seen Goodness in Them. Freedom is the Right of All Sentient Beings. You Know what we Must do. We Must Destroy The Cube. If all else fails I will place the All-Spark inside of my Chest. .......... A Necessary Sacrifice. We Can't Let The Humans Pay For Our Mistakes. It's been an Honor serving with you All. Autobots - Transform And Roll Out.

Transformers : Revenge Of The Fallen : Sideswipe - Damn I'm Good.

Transformers : Dark Of The Moon : Optimus To Sentinel Prime : You're the One who taught Me that Freedom's the Right of All Beings and that it's Everyone's Right.

 

Sam: "NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO!"