Summa I — Summa Theologiae

Treatise on Sacred Doctrine q.1
The Nature and Extent of Sacred Doctrine q.1
Treatise on the One God q.2–26
The Existence of God q.2
Of the Simplicity of God q.3
The Perfection of God q.4
Of Goodness in General q.5
The Goodness of God q.6
The Infinity of God q.7
The Existence of God in Things q.8
The Immutability of God q.9
The Eternity of God q.10
The Unity of God q.11
How God Is Known by Us q.12
The Names of God q.13
Of God’s Knowledge q.14
Of Ideas q.15
Of Truth q.16
Concerning Falsity q.17
The Life of God q.18
The Will of God q.19
God’s Love q.20
The Justice and Mercy of God q.21
The Providence of God q.22
Of Predestination q.23
The Book of Life q.24
The Power of God q.25
Of the Divine Beatitude q.26
Treatise on the Most Holy Trinity q.27–43
The Procession of the Divine Persons q.27
The Divine Relations q.28
The Divine Persons q.29
The Plurality of Persons in God q.30
Of What Belongs to the Unity or Plurality in God q.31
The Knowledge of the Divine Persons q.32
Of the Person of the Father q.33
Of the Person of the Son q.34
Of the Image q.35
Of the Person of the Holy Ghost q.36
Of the Name of the Holy Ghost---Love q.37
Of the Name of the Holy Ghost, as Gift q.38
Of the Persons in Relation to the Essence q.39
Of the Persons as Compared to the Relations or Properties q.40
Of the Persons in Reference to the Notional Acts q.41
Of Equality and Likeness Among the Divine Persons q.42
The Mission of the Divine Persons q.43
Treatise on the Creation q.44–46
The Procession of Creatures from God, and of the First Cause of All Things q.44
The Mode of Emanation of Things from the First Principle q.45
Of the Beginning of the Duration of Creatures q.46
Treatise on the Distinction of Things in General q.47
Of the Distinction of Things in General q.47
Treatise on the Distinction of Good and Evil q.48–49
The Distinction of Things in Particular q.48
The Cause of Evil q.49
Treatise on the Angels q.50–64
Of the Substance of the Angels Absolutely Considered q.50
Of the Angels in Comparison with Bodies q.51
Of the Angels in Relation to Place q.52
Of the Local Movement of the Angels q.53
Of the Knowledge of the Angels q.54
Of the Medium of the Angelic Knowledge q.55
Of the Angel’s Knowledge of Immaterial Things q.56
Of the Angel’s Knowledge of Material Things q.57
Of the Mode of Angelic Knowledge q.58
The Will of the Angels q.59
Of the Love or Dilection of the Angels q.60
Of the Production of the Angels in the Order of Natural Being q.61
Of the Perfection of the Angels in the Order of Grace and of Glory q.62
The Malice of the Angels with Regard to Sin q.63
The Punishment of the Demons q.64
Treatise on the Work of the Six Days q.65–74
The Work of Creation of Corporeal Creatures q.65
On the Order of Creation Towards Distinction q.66
On the Work of Distinction in Itself q.67
On the Work of the Second Day q.68
On the Work of the Third Day q.69
Of the Work of Adornment, as Regards the Fourth Day q.70
On the Work of the Fifth Day q.71
On the Work of the Sixth Day q.72
On the Things That Belong to the Seventh Day q.73
On All the Seven Days in Common q.74
Treatise on Man q.75–102
Of Man Who Is Composed of a Spiritual and a Corporeal Substance: And in the First Place, Concerning What Belongs to the Essence of the Soul q.75
Of the Union of Body and Soul q.76
Of Those Things Which Belong to the Powers of the Soul in General q.77
Of the Specific Powers of the Soul q.78
Of the Intellectual Powers q.79
Of the Appetitive Powers in General q.80
Of the Power of Sensuality q.81
Of the Will q.82
Of Free-Will q.83
How the Soul While United to the Body Understands Corporeal Things Beneath It q.84
Of the Mode and Order of Understanding q.85
What Our Intellect Knows in Material Things q.86
How the Intellectual Soul Knows Itself and All Within Itself q.87
How the Human Soul Knows What Is Above Itself q.88
Of the Knowledge of the Separated Soul q.89
Of the First Production of Man’s Soul q.90
The Production of the First Man’s Body q.91
The Production of the Woman q.92
The End or Term of the Production of Man q.93
Of the State and Condition of the First Man as Regards His Intellect q.94
Of Things Pertaining to the First Man’s Will---Namely, Grace and Righteousness q.95
Of the Mastership Belonging to Man in the State of Innocence q.96
Of the Preservation of the Individual in the Primitive State q.97
Of the Preservation of the Species q.98
Of the Condition of the Offspring as to the Body q.99
Of the Condition of the Offspring as Regards Righteousness q.100
Of the Condition of the Offspring as Regards Knowledge q.101
Of Man’s Abode, Which Is Paradise q.102
Treatise on the Conservation and Government of Creatures q.103–119
Of the Government of Things in General q.103
The Special Effects of the Divine Government q.104
Of the Change of Creatures by God q.105
How One Creature Moves Another q.106
The Speech of the Angels q.107
Of the Angelic Degrees of Hierarchies and Orders q.108
The Ordering of the Bad Angels q.109
How Angels Act on Bodies q.110
The Action of the Angels on Man q.111
The Mission of the Angels q.112
Of the Guardianship of the Good Angels q.113
Of the Assaults of the Demons q.114
Of the Action of the Corporeal Creature q.115
On Fate q.116
Of Things Pertaining to the Action of Man q.117
Of the Production of Man from Man as to the Soul q.118
Of the Propagation of Man as to the Body q.119