Is it uppercase letters for the following?
Nei nostri cuori per sempre / Nei Nostri Cuori Per Sempre
Riposa in pace / Riposa In Pace
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Sign up to join this communityIs it uppercase letters for the following?
Nei nostri cuori per sempre / Nei Nostri Cuori Per Sempre
Riposa in pace / Riposa In Pace
As explained in answers to this other question, title case is quite common in English, but it's extraneous to Italian. So, I would say the standard way to write the examples of scriptures you propose in your question is simply use sentence case, in the following way:
Nei nostri cuori per sempre
Riposa in pace