Conversation so far:
Where was Sam Harris born?
in Los Angeles.
What did his parents do for a living?
the son of actor Berkeley Harris and TV producer Susan Harris.
Was his family in any type of religion?
His father came from a Quaker background and his mother is a secular Jew.
Where did Sam Harris attend college?
Stanford University.

Question: What was his major?
Self-contained rewrite: What was Sam Harris's major at Stanford University?