“The world is full of ‘readers,’” the man went on. “But a person of my standing is required to read far more books than the average reader. Someone who has read twenty thousand books is much more valuable than someone who has read only ten thousand. And so why would I reread the same book when there are still piles of books that need to be read? Out of the question! Ridiculous waste of time!”
Reading 20,000 books means nothing if you don't understand or remember them. Reading 10,000 books but thoroughly examining them is much more meaningful. Jack of all trades... master of none, but better than the master of only being able to read many books.