The Summa Theologica (or the Summa Theologiae or simply the Summa, written 1265-1274) is the most famous work of Thomas Aquinas (c. 1225-1274) although it was never finished. It was intended as a manual for beginners and a compilation of all of the main theological teachings of that time. It summarizes the reasoning for almost all points of Christian theology in the West, which, before the Protestant Reformation, subsisted solely in the Roman Catholic Church. The Summa's topics follow a cycle: the existence of God, God's creation, Man, Man's purpose, Christ, the Sacraments, and back to God. (Summary adapted from the Wikipedia)
Chapters
1 Question 60 - WHAT IS A SACRAMENT (In Eight Articles) 52 min 2 Question 61 - THE NECESSITY OF THE SACRAMENTS (In Four Articles) 21 min 3 Question 62 - THE SACRAMENTS' PRINCIPAL EFFECT, WHICH IS GRACE (In Six Articles) 40 min 4 Question 63 - THE OTHER EFFECT OF THE SACRAMENTS, WHICH IS A CHARACTER (In Six Articles) 38 min 5 Question 64 - THE CAUSES OF THE SACRAMENTS (In Ten Articles), part 1 31 min 6 Question 64 - THE CAUSES OF THE SACRAMENTS (In Ten Articles), part 2 31 min 7 Question 65 - THE NUMBER OF THE SACRAMENTS (In Four Articles) 32 min 8 Question 66 - THE SACRAMENT OF BAPTISM (In Twelve Articles), part 1 31 min 9 Question 66 - THE SACRAMENT OF BAPTISM (In Twelve Articles), part 2 31 min 10 Question 66 - THE SACRAMENT OF BAPTISM (In Twelve Articles), part 3 27 min 11 Question 67 - THE MINISTERS BY WHOM THE SACRAMENT OF BAPTISM IS CONFERRED (In Eight Articles) 41 min 12 Question 68 - THOSE WHO RECEIVE BAPTISM (In Twelve Articles), part 1 38 min 13 Question 68 - THOSE WHO RECEIVE BAPTISM (In Twelve Articles), part 2 34 min 14 Question 69 - THE EFFECTS OF BAPTISM (In Ten Articles), part 1 28 min 15 Question 69 - THE EFFECTS OF BAPTISM (In Ten Articles), part 2 26 min 16 Question 70 - CIRCUMCISION (In Four Articles) 28 min 17 Question 71 - THE PREPARATIONS THAT ACCOMPANY BAPTISM (In Four Articles) 21 min 18 Question 72 - THE SACRAMENT OF CONFIRMATION (In Twelve Articles), part 1 39 min 19 Question 72 - THE SACRAMENT OF CONFIRMATION (In Twelve Articles), part 2 31 min 20 Question 73 - THE SACRAMENT OF THE EUCHARIST (In Six Articles) 34 min 21 Question 74 - THE MATTER OF THIS SACRAMENT (In Eight Articles) 43 min 22 Question 75 - THE CHANGE OF BREAD AND WINE INTO THE BODY AND BLOOD OF CHRIST (In Eight Articles) 1 h 2 min 23 Question 76 - THE WAY IN WHICH CHRIST IS IN THIS SACRAMENT (In Eight Articles) 48 min 24 Question 77 - THE ACCIDENTS WHICH REMAIN IN THIS SACRAMENT (In Eight Articles) 59 min 25 Question 78 - THE FORM OF THIS SACRAMENT (In Six Articles) 55 min 26 Question 79 - THE EFFECTS OF THIS SACRAMENT (In Eight Articles) 47 min 27 Question 80 - THE USE OR RECEIVING OF THIS SACRAMENT IN GENERAL (In Twelve Articles), part 1 47 min 28 Question 80 - THE USE OR RECEIVING OF THIS SACRAMENT IN GENERAL (In Twelve Articles), part 2 49 min 29 Question 81 - THE USE WHICH CHRIST MADE OF THIS SACRAMENT AT ITS INSTITUTION (In Four Articles) 23 min 30 Question 82 - THE MINISTER OF THIS SACRAMENT (In Ten Articles) 53 min 31 Question 83 - THE RITE OF THIS SACRAMENT (In Six Articles), part 1 36 min 32 Question 83 - THE RITE OF THIS SACRAMENT (In Six Articles), part 2 57 min 33 Question 84 - THE SACRAMENT OF PENANCE (In Ten Articles), part 1 34 min 34 Question 84 - THE SACRAMENT OF PENANCE (In Ten Articles), part 2 37 min 35 Question 85 - PENANCE AS A VIRTUE (In Six Articles) 33 min 36 Question 86 - THE EFFECT OF PENANCE, AS REGARDS THE PARDON OF MORTAL SIN (In Six Articles) 38 min 37 Question 87 - THE REMISSION OF VENIAL SIN (In Four Articles) 20 min 38 Question 88 - THE RETURN OF SINS WHICH HAVE BEEN TAKEN AWAY BY PENANCE (In Four Articles) 28 min 39 Question 89 - THE RECOVERY OF VIRTUE BY MEANS OF PENANCE (In Six Articles) 39 min 40 Question 90 - THE PARTS OF PENANCE, IN GENERAL (In Four Articles) 21 min
