Woody Allen:
I mean, it was, it was ... a legal chicken ... It wasn't like it was a blood relative or anything. (And don't believe anything that Mia says about me.)

Aristotle:
To actualize its potential.

The Dead Sea Scrolls:
And God came down from the heavens, and He said unto the chicken, "Thou shalt cross the road." And the Chicken crossed the road, and there was much rejoicing.

Pat Buchanan:
To steal a job from a decent, hard-working American.

Roseanne:
Urrrrrp. What chicken?

Jack Benny:
I'm thinking. ... I'm thinking

James Cagney:
It crossed twice. The dirty double-crosser.

John Cleese:
This Chicken is no more. It has ceased to function. Bereft of life, it rests in peace. It's a stiff. If it wasn't nailed to the road it'd be pushing up daisies. It's snuffed it. It's metabolic processes are now history. It's bleeding demised. It's rung down the curtain, shuffled off the mortal coil and joined the bleeding Choir Invisible. This is an Ex-Chicken. Ergo, it did not cross the road.

Darwin:
Chickens, over great periods of time, have been naturally selected in such a way that they are now genetically predisposed to cross roads

James Dean:
To prove he wasn't chicken.

Emily Dickenson:
Because it could not stop for death.

Ralph Waldo Emerson:
It didn't cross the road; it transcended it.

M.C.Escher:
That depends on which plane of reality the chicken was on at the time.

Dirk Gently (Holistic Detective):
I'm not exactly sure why, but right now I've got a horse in my bathroom.

Grandpa:
In my day, we didn't ask why the chicken crossed the road. Someone told us that the chicken had crossed the road, and that was good enough for us.

Sherlock Holmes:
Do not concern yourself with the chicken that did cross the road; the answer lies with the chicken that did not cross the road.

and last but not least....

Colonel Sanders:
I missed one?


Hope yu like mah add-on (maybe more to come)