Date: c. 1400

"Minde is clepid a principal my3te, for it conteneþ in it goostly not only alle þe oþer mi3tes, þot þerto alle þo þinges in þe whiche þei worchen."

— Anonymous

Date: Trans. 1425

"þe brayn..is þe place & þe habitacioun of þe resonable soule, as G[alen] hym selfe seid."

— Guy de Chauliac (c.1300-1368)

Date: Trans. c. 1425

"The gate also of mynde is schitt, þat it haþ no mynde of þe world ne of his owne sensible feelynge."

— St. Catherine of Siena (1347-1380)

Date: Trans. 1425

"Haue alle þe ylke cifers togedur in þi mynde, a-rowe ychon aftur other."

— Johannes de Sacrobosco or Sacro Bosco; John of Holywood (c. 1195 - c. 1256)

Date: c. 1440-1450

"Vnderstondying is þe sy3t in þe ey3e of soule, desire is þe ere & þe herying of the soule, dely3t is þe mowth & þe swelwying of þi soule, Mynde is þe nase & þe smellyng of þi soule; wyll & consent is þe felyng of þi soule."

— Anonymous

Date: 1445

"Eche of þese [v inward bodili wittis: commune witt, ymaginacioun, ffantasie, estimacioun, mind] han to hem her propre chaumbres in þe brayn..as philosophris seyn."

— Pecock, Reginald (c.1395-1460)

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)