More quotes by Philip K. Dick, VALIS

"Pious people spoke to God, and crazy people imagined that God spoke back."
"This is a mournful discovery.1)Those who agree with you are insane2)Those who do not agree with you are in power."
"The mentally disturbed do not employ the Principle of Scientific Parsimony: the most simple theory to explain a given set of facts. They shoot for the baroque."
"It is sometimes an appropriate response to reality to go insane."
"The cries of the dead are terrible indeed; you should try not to hear them."