This is how humans are: we question all our beliefs, except for the ones we really believe, and those we never think to question.

The line points to a common psychological asymmetry: people often treat their deepest commitments as invisible “givens,” while directing skepticism toward peripheral or socially negotiable opinions. Card’s phrasing highlights how belief can function less as a conclusion reached by reasoning than as a background assumption that shapes what we notice, what we doubt, and what feels self-evident. The quote also implies that genuine intellectual honesty requires turning inquiry inward—examining the convictions most tied to identity, community, or moral certainty. Its significance lies in naming a mechanism behind dogmatism and confirmation bias: the beliefs that most need scrutiny are often the ones least likely to be subjected to it.