Re: Frase de Cielo Latini
I would make some changes to your version:
Never allow senseless ideas or irreversible facts to take any percentage of your mind.
Anyway, I strongly recomend you to wait for a native speaker's help.
Re: Frase de Cielo Latini
How about:
Never let things that don't make sense or things you can't change occupy (a significant) percentage of your gray matter. (Or ...of your mind.)
Re: Frase de Cielo Latini
Thks mariaklec and clarab ;)
Re: Frase de Cielo Latini
"Nunca dejen que cosas sin sentido o cosas que no se pueden arreglar les ocupen porcentaje de materia gris."
Never let senseless or repairable things take any percent of your mind.