“Celebra Missam. Ut Primam. Ut Unicam. Ut Ultimam”. “Celebrate This Mass As Though It Was Your First Mass; As Though It Was Your Only Mass; As Though It Was Your Last Mass”.

Seen in the Sacristy of the  Basilica of Saint Mary Major, Rome. “Priest of God. “Celebrate this Mass as though it was your first Mass. “Cel...