Lisa: "Milhouse, you don't care about the environment."
Milhouse: "Hey, I am VERY passionate about the Planet!"
Nelson Muntz: [threatening to beat up Milhouse] "Say Global Warming is a myth!"
Milhouse: "It's a myth, further study is needed!"
[Nelson punches Milhouse]
Nelson Muntz: "That's for selling out your beliefs." [runs off]