A person's conclusions can only be as solid as the information on which they are based. Thus, a person who is exposed to almost nothing but inaccurate information on a given subject almost inevitably develops an erroneous belief, a belief that can seem to be "an irresistible product" of the individual's (secondhand) experience.
Thomas Gilovich, How We Know What Isn't So: The Fallibility of Human Reason in Everyday Life
beliefs, reasoning