See Russell & Norvig 2003, tr. 3Lỗi harv: không có mục tiêu: CITEREFRussellNorvig2003 (trợ giúp), where they make the distinction between acting rationally and being rational, and define AI as the study of the former. Russell, Stuart J.; Norvig, Peter (2003), Artificial Intelligence: A Modern Approach (ấn bản thứ 2), Upper Saddle River, New Jersey: Prentice Hall, ISBN0-13-790395-2
