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Seneca (4 BC-65 AD) was a Roman advocate and senator, who acted as tutor and, following his accession, political advisor to the Roman emperor Nero. He was implicated in a conspiracy and forced to commit suicide. His writings included a series of Moral Essays, which included 'De Beneficiis' ('On Benefits'), in which he discussed favours and the nature of gratitude and ingratitude.
St Jerome (c340-420) wrote a large number of theological works. Amongst his earliest were his revisions of the Latin version of the New Testament, including the Epistles of St Paul in 385.
The Clementinae is a collection of canon law, promulgated (1317) by John XXII, and drawn mostly from the constitutions of Clement V at the Council of Vienne.
The Missal is a liturgical book which contains the prayers said by the priest at the altar as well as all that is officially read or sung in connection with the offering of the holy Sacrifice of the Mass throughout the ecclesiastical year.