“When in doubt, go to the library.”
“Because that's what Hermione does,' said Ron, shrugging. 'When in doubt, go to the library.”
“Harry — I think I've just understood something! I've got to go to the library!”And she sprinted away, up the stairs.“What does she understand?” said Harry distractedly, still looking around, trying to tell where the voice had come from.“Loads more than I do,” said Ron, shaking his head.“But why’s she got to go to the library?”“Because that’s what Hermione does,” said Ron, shrugging. “When in doubt, go to the library.”
“When all else fails, give up and go to the library.”
“When in doubt, go back to sleep.”
“If every kid who said he was going to the library, when he was really off doing something else, actually went to the library, they'd have to send out for more books.”