"Lionel whispered because he was under the impression that it was out of respect for books, not consideration for readers."

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In formulating any philosophy the first consideration must always be: What can we know? That is, what can we be sure we know, or sure that we know we knew it, if indeed it is at all knowable. Or have we simply forgotten it and are too embarrassed to say anything? Descartes hinted at the problem when he wrote, 'My mind can never know my body, although it has become quite friendly with my legs.

— Woody Allen