don't you need a fulcrum? I bought two boxes of books from Amazon. Sophia, a six-year-old asked me, "give me two boxes and I shall make a bookshelf. " sounds like a fast learner in her Handicraft classes, huh? I answered, "oh? give me a long lever, and I shall move the world. " She was surprised," don't you need a fulcrum? " I was just in silent. "Wow", she gasped, "then you're better Archimedes. He needed a fulcrum too. "