Love all of the above quotes. There are so many lines from this series that I adore, from Frank's very simple "Nerts!" to Hawkeye's lengthy and lyrical rant on why he will not carry a gun. Don't even get me started. But I will say that the episode that I first really paid attention to, way back when I was 12 or something, has one of the best scripts ever, "For Want of a Boot."
Margaret: "Henry Blake is a sham commander, a farcical administrator, and a spineless, irresponsible, lecherous old beanbag." Hawkeye: "Margaret, we're not going to get anywhere if you keep holding back."
Trapper: "Klinger's not a pervert!" Margaret: "How do you know?" Trapper: "Because I'm one and he's never at the meetings."
...Just to quote a few off the top of my head.