Fiona Ball 1. In the 4th century BCE, Aristotle developed his laws of association in order to explain the manner in which thoughts are formed. Since he believed that all knowledge came from examining the physical world, thoughts necessarily were initiated through experiences, which left imprints on the mind. These repeated experiences would then cause patterns, so that if one thing was experienced, the mind then thought of the thing which often happened after or with it. After Aristotle stated this