I think in this context , ' belief ' is acceptance without evidence . If I told you I had breakfast this morning you would probably accept that what I said was true without asking for ' proof '. This is because you know that most people have breakfast and me , being a big guy , probably didn ' t skip a meal . Now , if I told you I had breakfast in Cuba you might believe me but you would be skeptical . In your head you would be calculating flight hours and maybe even look up flight schedules to see if what I claimed was possible . If I said I had breakfast on the moon you would most likely dismiss me out of hand unless I could provide evidence that would make my claim plausible . If you thought my claims were rationalplausible then you would accept them . Believing would be to accept my claims without evidence or skepticism . Now , with the claims of science , you CAN just ' believe them ' but there is evidence to back those claims up that you can investigate on your own . The argument could also be made that some supernatural claims DO have evidence but that becomes an issue of what standards of evidence you accept as plausible . e . g . the ' thousands of eyewitnesses ' to the Miracle of the Sun