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scales  QUOTES

45 " When Rhiannon was small and had just learned to read, her mother brought her into the hall one day when her father was on campaign, and led her to the large table upon which a great map of their lands lay. She instructed Rhiannon to read the words of the landmarks: castle, road, mountain, forest, village. The young girl touched words inscribed over a place where trees met craggy peaks. “What does that say, my love?” her mother prompted. “Here be dragons,” Rhiannon answered, glancing up at her mother. Her mother nodded, smiling. She knelt down in front of Rhiannon so they were at the same height. The lady’s hazel eyes sparkled as she whispered, “I have a secret to share. But I can only share it with a little girl with red and gold hair,” she pulled playfully on Rhiannon’s braid,” who knows how to read.” Rhiannon giggled. “Are you a little girl such as this?” Rhiannon nodded eagerly, and her mother laughed. She stood up and gestured at a tapestry on the wall. “Come, child, the dragon guards our treasure.” Hand in hand they walked to the tapestry of the sleeping dragon. “Your great-great grandmother wove this tapestry when she was an old woman. It took her a long time to complete, with her hands gnarled so, like the twisted oak by the drawbridge.” The dragon was curled up in front of a turret, with stone dolmens in a semi-circle behind it, interspersed with trees and a mountain peak in the background and bright blue sky above. The dragon’s scales were crimson and woven through with glittering gold thread, and its curved horns and talons were gold. As they paused in front of the large tapestry, Rhiannon looked closely at the eyes of the dragon; she thought perhaps she could see a slit of gold, as if the dragon were only pretending to be asleep. Rhiannon’s mother stood on tiptoe and moved part of the tapestry to the side, revealing a slit in the stone wall. With her free hand she reached in and drew out a large leather-bound tome. She motioned her daughter to come sit with her on one of the benches that lined the walls. “Look and listen well, my daughter,” she said, and ran her fingers along the smooth cover, “this book is our special treasure, and it contains many secrets within its pages. I am going to teach you how to read them.” She opened the book as Rhiannon snuggled closer to her, her mother’s loose red-gold hair falling over the girl’s shoulder and brushing the crinkly parchment pages of the book which she turned until she came to the picture of a girl. "

60 " What we can imagine as plausible is a narrow band in the middle of a much broader spectrum of what is actually possible. [O]ur eyes are built to cope with a narrow band of electromagnetic frequencies. [W]e can't see the rays outside the narrow light band, but we can do calculations about them, and we can build instruments to detect them. In the same way, we know that the scales of size and time extend in both directions far outside the realm of what we can visualize. Our minds can't cope with the large distances that astronomy deals in or with the small distances that atomic physics deals in, but we can represent those distances in mathematical symbols. Our minds can't imagine a time span as short as a picosecond, but we can do calculations about picoseconds, and we can build computers that can complete calculations within picoseconds. Our minds can't imagine a timespan as long as a million years, let alone the thousands of millions of years that geologists routinely compute. Just as our eyes can see only that narrow band of electromagnetic frequencies that natural selection equipped our ancestors to see, so our brains are built to cope with narrow bands of sizes and times. Presumably there was no need for our ancestors to cope with sizes and times outside the narrow range of everyday practicality, so our brains never evolved the capacity to imagine them. It is probably significant that our own body size of a few feet is roughly in the middle of the range of sizes we can imagine. And our own lifetime of a few decades is roughly in the middle of the range of times we can imagine. "

Richard Dawkins , The Blind Watchmaker: Why the Evidence of Evolution Reveals a Universe Without Design