Give me strength or give me a reason: Self-control, religion, and the currency of reputation

We show that Kurzban et al.'s approach illuminates the relationship between religion and self-control. Whereas resourcedepletion theorists suggest religion replenishes self-control resources ("strength"), we submit that religious cues make people feel observed, giving them "reason" to persevere, and we describe an experiment that supports our interpretation. Finally, we question the claim that subjective fatigue is a signal to redeploy resources.