Date: 1159

"What is more remarkable, every one of us carries in his heart a book of knowledge, opened by the exercise of reason."

— John of Salisbury (c. 1115-1180)

Date: 1159

"In this [book of reason] are portrayed not only the forms of all visible things and nature in general; the invisible things of the Fabricator of all things are also written down by the very hand of God."

— John of Salisbury (c. 1115-1180)

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

"The mind's hand shapes the entire house before the body's hand builds it."

— 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: w. c. 1210

"As a prudent workman, construct the whole fabric within the mind's citadel; let it exist in the mind before it is on the lips."

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

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: 1604

"How are the Soule and Body, Spirite and Flesh coupled together, what chaynes, what fetters imprison a spirituall Substance, an immortal Spirit in so base, stinking; and corruptible a carkasse?"

— Wright, Thomas (c. 1561-1623)