Live Among The Gorillas

Ted : ...It's like I'm trying to preserve something that's already gone
Marshall : Preserving something that's already gone. Sounds like environmental law.
Ted : I don't know. We struggle so hard to hold on to these things that we know are going to disappear eventually. And that's really noble. But even if you save every rain forest from being turned into a parking lot, well, then where are you going to park your car?

How I Met Your Mother, S01E17