The beauty of Migi's words in 'Parasyte' lies in their chilling simplicity that cuts straight to existential truths. When translating "人間は食べるために殺す。俺たちは生きるために殺す" into English, I'd go for "Humans kill to eat. We kill to survive" - that stark parallel perfectly captures the unsettling logic of parasites.
Migi's most iconic line "感情は不必要だ" becomes "Emotions are unnecessary" in English, but loses some nuance. The Japanese version implies a clinical dismissal of feelings as inefficient, while the English comes across slightly more judgmental. For "お前は弱いから、考えるんだ", I prefer "You think because you're weak" over literal translations, as it preserves Migi's brutal honesty about human vulnerability.
What fascinates me is how Migi's lines gain new dimensions in translation. "共生とは何か?" as "What is symbiosis?" becomes a profound philosophical question rather than just biological inquiry. The best translations maintain that eerie blend of scientific detachment and deep existential questioning that makes Migi so memorable.