A noble spirit embiggens the smallest man.
“Hi, I’m Troy McClure. You may remember me from such Driver’s Ed films as Alice’s Adventures through the Windshield Glass and The Decapitation of Larry Leadfoot.”
Damn straight.
They should make a Simpsons miniseries and reuse all the best lines.
Awesome, page 3 and my favorite hasn’t been taken:
Sideshow Bob: I’ve been imprisoned for a crime I didn’t even commit! I mean, really, what’s “attempted” murder? Do they give a Nobel prize for attempted chemistry?
Another of my favorites, in the octuplets episode:
Apu: Oh sure, we should get a nanny. And what would we pay her with, BANANA BREAD? Sorry, so sorry…as a token of apology, please take this baby.
“So, do you…like…stuff?”
“That’s where I saw the leprechaun! He tells me to burn things!”
One of my favorites courtesy of Grandpa:
My Homer is not a Communist. He may be a liar, a pig, an idiot, a Communist, but he is NOT a porn star!
and of course
Bunjer, ya cheese eatin’ surrender-monkeys!
“Sleep - that’s where I’m a Viking!”
Jacques: “…meet me tomorrow for brunch.”
Marge: “What’s brunch?”
Jacques: “Its not quite breakfast, its not quite lunch, but it comes with a slice of cantaloupe at the end…”
From Life On The Fast Lane
Homer: “Bring me my ranch dressing hose!”
Homer: “Hello, my name is Mr Burns. I believe you have a letter for me.”
Postal Worker: “Okay. What’s your first name Mr Burns?”
Homer: “I don’t know” <<scampers away>>
From Blood Feud
Homer’s brain: ‘Don’t say you were at a bar. Quick, what other place is open at one am?’
Homer: “Moe’s is a pornography store. I was buying pornography.”
Ninja’d in Post #63. 
Mmmmmmm… Free goo!
Either Patty or Selma, I’m not sure which and even less sure that it matters, and don’t forget to conjure up a gravel-ly raspy voice:
“Kids- the older they get, the cuter they AIN’T.”
From “Blood Feud”:
Homer: … (o)nce upon a time, there was a big mean lion who got a thorn in his paw. All the village people tried to pull it out, but nobody was strong enough! So, they got Hercules. And Hercules used his mighty strength, and Bingo! Anyway, the moral is, the lion was so happy, he gave Hercules this big… thing… of riches.
Bart: How did a lion get rich?
Homer: It was the olden days!
See how old the show is, you wouldn’t even have to buy pornography today, you could just download it
In America, first you get the sugar, then
you get the power, then you get the women…
Ah, TV. With it’s warm glowing warming glow.
Mmmm… unexplained bacon…
Some Kang and Kodos lines:
“Look out! He’s got a board with a nail in it!”
“That board with a nail in it may have defeated us. But the humans won’t stop there. They’ll make bigger boards and bigger nails, and soon, they will make a board with a nail so big, it will destroy them all!”
“We have reached the limits of what rectal probing can teach us.”
“Your superior intellect is no match for our puny weapons!”
Really? All these posts and no one lists the one phrase that became a national catchphrase? 
“Don’t have a cow, man!”
So THAT’S where that comes from.
That’s a quote? I thought it was just classic Dope sarcasm.