Nearly all hackers past their teens are either college-degreed or
self-educated to an equivalent level. The self-taught hacker is often
considered (at least by other hackers) to be better-motivated, and may
be more respected, than his school-shaped counterpart. Academic areas
from which people often gravitate into hackerdom include (besides the
obvious computer science and electrical engineering) physics,
mathematics, linguistics, and philosophy.
-- The AI Hackers Dictionary