St. Thomas Aquinas wrote about memory in his Summa Theologiae, particularly in the section on the virtues associated with prudence. He regarded memory as an essential tool for practical wisdom, as it allows one to apply past experiences to present situations.
Aquinas believed that memory can be strengthened through specific techniques. He borrowed ideas from the Ad Herennium, a classical text on rhetoric, and he recommended the following methods:
1. Order: Aquinas emphasized structuring and organizing material in a logical order. This could involve breaking up complex information into smaller parts or placing items in a sequence that is easy to recall.
2. Association with images: He suggested associating ideas with vivid, often unusual or strange images, because such imagery makes information more memorable. The more striking or emotionally charged the image, the easier it is to recall.