Belief is the acceptance of truth. Truth is the conformity of a proposition of the way things are. In my opinion humans all decide what truths they choose to believe in. Logicial induction and deductional reasoning aids in decerning what premises or arguments are faulty or illogical. If a argument is found to be flawed and the premise false one has the choice to reformulate, or investigate or seek more evidence to support the premise. Or one my simple choose to believe a flawed premise or proposition. If the latter is the case then one in operating in a state of ignorance in my opinion. But that is by choice.
"One is punished most for ones virtues" Fredrick Neitzche