Aeterni Patris

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Aeterni Patris Latin for 'Of the Eternal Father' Encyclical of Pope Leo XIII
Signature date	4 August 1879
Subject	On the restoration of Christian Philosophy
Number	3 of 85 of the pontificate
Text	In Latin In English
← Quod Apostolici Muneris   Arcanum (encyclical) →

Aeterni Patris (English: Of the Eternal Father) was an encyclical issued by Pope Leo XIII in August 1879.^[1] It was subtitled "On the Restoration of Christian Philosophy in Catholic Schools in the Spirit (ad mentem) of the Angelic Doctor, St. Thomas Aquinas". The aim of the encyclical was to advance the revival of Scholastic philosophy.