12th Century
Peter Lombard
Medieval Period
Peter Lombard (c. 1096 – 1160), Scholastic theologian and author of the Sentences. Wikipedia
"And so after the consecration the substance of bread and wine is not there, although the species remain, for the species of bread and wine are there, as indeed is their taste, so that “one thing is seen, another is understood." "
The Sentences. Book 4, The Mystery of the Trinity
View Source
Why this quote matters
Standard scholastic formulation anticipating Lateran IV/Trent terms.
Source citation: Sententiae in IV libris distinctae, IV (various eds.).