Just for fun, the answer according to:
KINDERGARTEN TEACHER: To get to the other side.
PLATO: For the greater good.
KARL MARX: It was a historical inevitability.
SADDAM HUSSEIN: This was an unprovoked act of rebellion and we were quite justified in dropping 50 tons of nerve gas on it.
CAPTAIN JAMES T. KIRK: To boldly go where no chicken has gone before.
MARTIN LUTHER KING, JR: I envision a world where all chickens will be free to cross roads without having their motives called into question.
MOSES: 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.
RICHARD M. NIXON: The chicken did not cross the road. I repeat, the chicken did NOT cross the road.
JERRY SEINFELD: Why does anyone cross a road? I mean, why doesn't anyone ever think to ask, What the heck was this chicken doing walking around all over the place, anyway?
FREUD: The fact that you are at all concerned that the chicken crossed the road reveals your underlying sexual insecurity.
OLIVER STONE: The question is not, ``Why did the chicken cross the road?'' Rather, it is, ``Who was crossing the road at the sametime, whom we overlooked in our haste to observe the chicken crossing?''
BUDDHA: Asking this question denies your own chicken nature.
RALPH WALDO EMERSON: The chicken did not cross the road... it transcended it.
HAMLET: To cross, or not to cross, that is the question: -Whether 'tis nobler in the mind, to sufferThe slings and arrows of outrageous side; Or to take arms against a road of troubles,And by crossing end them?
SARAH PALIN: The chicken crossed the road because, gosh-darn it, he's a maverick!
BARACK OBAMA: Let me be perfectly clear, if the chickens like their eggs they can keep their eggs. No chicken will be required to cross the road to surrender her eggs. Period.
JOHN McCAIN: My friends, the chicken crossed the road because he recognized the need to engage in cooperation and dialogue with all the chickens on the other side of the road.
HILLARY CLINTON: What difference, at this point, does it make why the chicken crossed the road?
GEORGE W. BUSH: We don't really care why the chicken crossed the road. We just want to know if the chicken is on our side of the road or not. The chicken is either with us or against us. There is no middle ground here.
DICK CHENEY: Where's my gun?BILL CLINTON: I did not cross the road with that chicken.
AL GORE: I invented the chicken.
GRANDPA: In my day we didn't ask why the chicken crossed the road. Somebody told us the chicken crossed the road, and that was good enough for us.
ALBERT EINSTEIN: Did the chicken really cross the road, or did the road move beneath the chicken?
COLONEL SANDERS: Did I miss one?