Full Idea
Our conscious life involves the famous "four f's", fighting, fleeing, feeding and fornicating.
Gist of Idea
Mind involves fighting, fleeing, feeding and fornicating
Source
John Searle (The Rediscovery of the Mind [1992], Ch.10.I)
Book Reference
Searle,John R.: 'The Rediscovery of the Mind' [MIT 1999], p.227