Date: 399-426

"Well now, let us see where we are to locate what you might call the border between the outer and the inner man."

— St. Augustine (354-430)

Date: w. c. 1210

"The measuring line of his mind lays out the work, and he mentally outlines the successive steps in a definite order."

— Vinsauf, Geoffrey of [called Galfridus Anglicus] (fl. 1208-1213)

Date: w. c. 1210

"Let the mind's interior compass first circle the whole extent of the material."

— Vinsauf, Geoffrey of [called Galfridus Anglicus] (fl. 1208-1213)

Date: 1257

"Consequently, while original sin is a disease infecting both elements, the personal and the physical - the personal through the will and the physical through the flesh - the stain of original sin is blotted out in the soul, while on the other hand the infection and its consequences remain in the...

— St. Bonaventure [born Giovanni di Fidanza] (1217-1274)

Date: 1257

"Now, because actual sin offends God's majesty, damages the Church, and distorts the divine image stamped on the soul - especially if the sin is mortal, although venial sin will tend to do the same; and because offense calls for punishment, damage for repair, and distortion for purification: ther...

— St. Bonaventure [born Giovanni di Fidanza] (1217-1274)

Date: 1273

"Therefore the soul, which is the first principle of life, is not a body, but the act of a body; thus heat, which is the principle of calefaction, is not a body, but an act of a body."

— St. Thomas Aquinas (1225-1274)

Date: 1273

"Thirdly, because the action of a motor is never attributed to the thing moved, except as to an instrument; as the action of a carpenter to a saw. Therefore if understanding is attributed to Socrates, as the action of what moves him, it follows that it is attributed to him as to an instrument"

— St. Thomas Aquinas (1225-1274)

Date: 1273

"And (De Anima ii, 3) he [Aristotle] compares the various souls to the species of figures, one of which contains another; as a pentagon contains and exceeds a tetragon."

— St. Thomas Aquinas (1225-1274)

Date: 1273

"The artisan, for instance, for the form of the saw chooses iron adapted for cutting through hard material; but that the teeth of the saw may become blunt and rusted, follows by force of the matter itself. So the intellectual soul requires a body of equable complexion, which, however, is corrupti...

— St. Thomas Aquinas (1225-1274)

Date: 1273

"But the shape is united to the wax without a body intervening. Therefore also the soul is thus united to the body."

— St. Thomas Aquinas (1225-1274)