4 causes of doubt and uncertainty

Four causes of doubt and uncertainty:
1. Doubtful ambiguities
2. Indeterminable ambiguities
3. Inconclusive ambiguities 
4. Often giving irrational and unwise attention to such matters
(from Samyutta Nikaya 46.51)
==References==
*The Complete Book of Buddha's Lists -- Explained. David N. Snyder, Ph.D., 2006.
*http://www.thedhamma.com/
Category:Buddha's Lists