Around 825 AD, Persian scientist and polymath al-Khwarizmiwrote kitāb al-ḥisāb al-hindī ("Book of Indian computation") and kitab al-jam' wa'l-tafriq al-ḥisāb al-hindī ("Addition and subtraction in Indian arithmetic"). In the early 12th century, Latin translations of these texts involving the Hindu–Arabic numeral system and arithmetic appeared, for example Liber Alghoarismi de practica arismetrice, attributed to John of Seville, and Liber Algoritmi de numero Indorum, attributed to Adelard of Bath.[8] Here, alghoarismi or algoritmi is the Latinization of Al-Khwarizmi's name;[9] the text starts with the phrase Dixit Algoritmi, or "Thus spoke Al-Khwarizmi".

So in referring to what someone's true soul is, you can say "Thus spoke The Algorithm"