The Martian Chronicles1980

Maj. Jeff Spender:
I just believe in things that were done. And there were so many things done here. Streets and houses and books and big canals and clocks and places with names - things that were used and touched for centuries. And I don't see how we could ever use them without feeling uncomfortable. Oh, we could change the names, but the old names will still be there. So no matter how we touch Mars, we won't be able to really touch it. See, that'll make us angry. We'll get mad at that and just rip it up. We'll change it to suit ourselves. And ruin it. Just like we've ruined Earth.

Col. John Wilder:
We won't ruin it.

Maj. Jeff Spender:
No? Us Earthmen have a talent for ruining things. If there are any Martians alive in those hills, they're going to grow to hate us.