Schofield Kid: "Well, I guess we sure killed the hell outta them fellas, huh Will? - They sure had it comin. ."
William Munney: (slowly looks over to the kid disdainfully) "We all got it comin, kid"
District Attorney Rothko: You’re lucky I’m not indicting you for assault with intent to commit murder.
Harry Callahan: What?
District Attorney Rothko: Where the hell does it say that you’ve got a right to kick down doors, torture suspects, deny medical attention and legal counsel? Where have you been? Does Escobedo ring a bell? Miranda? I mean, you must have heard of the Fourth Amendment. What I’m saying is that man had rights.
Harry Callahan: Well, I’m all broken up over that man’s rights!
"Well, you're a good man, lieutenant. A good man always knows his limitations."
But perhaps topping the list (though it's hard to say) in one of the Dirty Harry flicks, when he blows away a bad guy who's holding up customers in a Chinese restaurant:
"You forgot to read your fortune cookie. It says 'You're sh*t out of luck.'" (and then, KABLOOEY from the Magnum; no more bad guy!)