Full Idea
If I had to design homo sapiens, I would have made commonsense knowledge of homo sapiens psychology innate; that way nobody would have to spend time learning it.
Gist of Idea
Evolution suggests that innate knowledge of human psychology would be beneficial
Source
Jerry A. Fodor (Psychosemantics [1987], p.132)
Book Reference
Fodor,Jerry A.: 'Psychosemantics' [MIT 1993], p.132