Traducción - Portugués brasileño-Alemán - Tu te tornas eternamente ...

Sorry for not commenting in German - I don't think my German is good enough.

'cativar' would be 'to capture' or maybe 'to tame' (translation used in the English edition of 'le petit prince') - not 'to do'. Translating it like that would lose all poetry that was there. It means that if you capture something or someone, if you bind it to you, that makes you responsible for what happens to them.

Also, wouldn't this sentence sound better if you change the word order? (Du bist ewig verantwortlich für das, was du getan hast.)

Let me correct the text now, OK?
Du bist ewig verantwortlich für das, was du gezähmt hast.

Du kannst es korrigieren, Vesna.

Die original Übersetzung aus dem Buch ist "Du bist zeitlebens für das verantwortlich, was du dir vertraut gemacht hast."

Soll das hin?

CC: Lein

Yes, I think that sounds good. 'cativar' (itself of course from a translated version of the book) is something like capture. Not sure what the French original of the book uses here.

The original text says:

"Tu deviens responsable pour toujours de ce que tu as apprivoisé."

["Le Petit Prince"; Chap. XXI]

So I believe that "vertraut" is not right here. "Gezähmt" could be the right word.

I'm far from being a German expert, but concerning the French word "apprivoisé" I agree with Lev. The right word here would be "gezähmt" .