Full Idea
A brief reflection makes it evident that most of our beliefs are generated by other beliefs we hold, and "generation" here could only mean causal generation.
Gist of Idea
Beliefs cause other beliefs
Source
Jaegwon Kim (Philosophy of Mind [1996], p.128)
Book Reference
Kim,Jaegwon: 'Philosophy of Mind' [Westview 1998], p.128
A Reaction
This seems right, and yet implies an uncomfortable determinism, as if all our beliefs just happened to us. I don't claim proper free will, but I do say there is an element in belief formation which is just caused by bunches of beliefs. Call it character.