I've got lots of favourites, one is;

Homer to Bart...."You tried your best and failed miserably. The lesson is: never try. Trying is the first step towards failure.”

my favourite is :

Burns: "Smithers! there's a rocket in my pocket!"
Smithers : "you don't have to tell me, sir!"

Marge: Homer, the plant called. They said if you don't show up tomorrow don't bother showing up on Monday.
Homer: Woo-hoo. Four-day weekend

Homer: How is education supposed to make me feel smarter? Besides, every time I learn something new, it pushes some old stuff out of my brain. Remember when I took that home winemaking course, and I forgot how to drive?

i cant think of any.........doh

Grandpa simpson sits down and we hear a splat.

Marge: Granpa, did you sit on my pie?

Granpa: I hope so.

I love this one:
Homer: So you think you know better than this family, eh? Well as long as you're in my house you'll do what I do and believe what I believe! So butter your bacon!
Bart: But dad, my heart hurts!
Homer: Butter it!
Bart: Yes, father

i love the you dont win friends with salad song

Policeman: Are you senile or just stalling us?

Grampa: A little from column A, a little from column B.

Purple is a fruit

Homer: Fame was like a drug, but what was even more like a drug were the drugs
_________________
Love is a language spoken by everyone,
but understood only by a heart.

nelson to bart : "how many monkey butlers will there be?"

Bart: " Eat My Shorts"

&

Bart: "Get Bent"

Allen Wrench: "Help, I need tungsten to live. TUNGSTEN!"

http://www.mrxswebpage.com/

Check it out.