<ref>{{cite book |last=Carruthers |first=Mary |url=http://books.google.com/books?hl=en&lr=&id=dntrAnqfIasC&oi=fnd&pg=PR8&dq=The+book+of+memory:+the+study+of+memory+in+medieval+times&ots=we1jd9n54J&sig=Lr9XAjRR9tiUyA0rCgI04VzEuKo#v=onepage&q=The%20book%20of%20memory%3A%20the%20study%20of%20memory%20in%20medieval%20times&f=false |title=The Book of Memory: A Study of Memory in Medieval Culture |year=2007 |page=16}}</ref>
Aristotle uses the word “memory” for two basic abilities. First, the actual retaining of the experience in the [[mnemonic]] “imprint” that can develop from [[sensation]]. Second, the intellectual anxiety that comes with the “imprint” due to being impressed at a particular time and processing specific contents. These abilities can be explained as memory is neither sensation nor thinking because is arises only after a lapse of time. Therefore, memory is of the past, {{sfn|Bloch|2007|p=25}} prediction is of the future, and sensation is of the present. The retrieval of our “imprints” cannot be performed suddenly. A transitional channel is needed and located in our past experiences, both for our previous experience and present experience.
