Date: 1273

"Therefore the consent to a sinful act always proceeds from the higher reason: because, as Augustine says (De Trin. xii, 12), 'the mind cannot effectively decide on the commission of a sin, unless by its consent, whereby it wields its sovereign power of moving the members to action, or of restrai...

— St. Thomas Aquinas (1225-1274)

Date: 1273

"On the contrary, Augustine proves (De Lib. Arb. i, 11) that 'nothing else than his own will makes man's mind the slave of his desire.'"

— St. Thomas Aquinas (1225-1274)

Date: 1273

"Further, whoever sins mortally, becomes the slave of the devil, according to Jn. 8:34: 'Whosoever committeth sin is the slave of sin.'"

— St. Thomas Aquinas (1225-1274)

Date: 1389

"The soule ... muste suffre for the bonde of the body that he is joyned to."

— Trevisa, John (b. c. 1342, d. in or before 1402); Bartholomeus (1203-1272)

Date: 1389

"Remigius diffineth a soule in this manere: a soule is a bodiles substaunce reulinge a body."

— Trevisa, John (b. c. 1342, d. in or before 1402); Bartholomeus (1203-1272)

Date: 1389

"The innere witte is departed a þre by þre regiouns of þe brayn, for in þe brayne beþ þre smale celles."

— Trevisa, John (b. c. 1342, d. in or before 1402); Bartholomeus (1203-1272)

Date: 1464

"The mind, to be sure, is like an intellectual book, which sees in itself, and for all, the intention of the author."

— Nicholas of Cusa (1401-1464)

Date: 1464

"For Simple Being, which is visible to the mind alone, is to the mind as the being of color is to the sense of sight."

— Nicholas of Cusa (1401-1464)

Date: 1464

" [I]f someone were to turn his mind's sight to the possibility, or power, of oneness: he surely would see in every number and in all plurality only oneness's power"

— Nicholas of Cusa (1401-1464)

Date: 1464

"Therefore, my dearly beloved Peter, with keen directedness turn your mind's eye to this secret, and with this analysis enter into my writings and into whatever other writings you read, and occupy yourself especially with my books and sermons."

— Nicholas of Cusa (1401-1464)