Eighteen great sciences

The eighteen great sciences or fields of knowledge (Tib. rigpé nechen chobgyé) are:

1. musical instruments (rol mo)
2. amorous dalliance (’khrig thabs)
3. running of a household (’tsho tshis)
4. algebra (grangs)
5. grammar (sgra)
6. medicine (gso spyad)
7. rules of behavior (chos lugs)
8. craftsmanship (bzo)
9. archery (’phongs)
10. logic (gtan tshigs)
11. yoga (rnal ’byor)
12. study (thos pa)
13. memorization (dran pa)
14. observation of the stars (skar ma’i spyad)
15. astrology (rtsis mig)
16. yantra yoga (Tib. trülkhor; Wyl. ’phrul ’khor)
17. stories of the past (sngon rabs)
18. history (sngon byung rigs)