A Bay of Blood (1971)
Simon: Man should live and let live, and without any interfering.
Paolo: Even that poor squid was free once, Simon, eh? I study Coleoptera because I love them.
Simon: Sure, but the squirming little creatures still end up under your microscope. Yeah, he's dead all right but at least I eat my squid. But I don't kill as a hobby like you do.
Paolo: Good lord, Simon. You make me feel like a murderer.
Simon: I'm not saying that, Mr. Fossati, but if you kill for killing's sake, you become a monster.
Paolo: But, man isn't an insect, my dear Simon. We have centuries of civilization behind us, you know.
Simon: No, I don't know. I wasn't there.