الترجمة:Children are pure.
7 تعليقاتهذه المناقشة مغلقة.
If you know those children ,they have talked about them you can use "the". That mean : using "the" to determine. More explanation ... -The boys , that means you determine whose are them ,but when you say just ,boy, without "the" that means all the boys in the world ...
So, from the meaning of the sentence you can determine use the or not.
I hope you understand ♥️