From under her desk, she took a large earthenware container with a large open neck. Then she picked up a bucket which had exactly fifteen rocks in it - each one was about the size of a child's fist. One by one she dropped the rocks into the container. Her audience looked at each other on disbelief. What is this crazy women doing? they wondered. Once all the rocks had been placed into the jar, the last one had reached the top. Is the jar full? she asked. Yes one of her audience replied. It looks full to me, unless of course it has a false bottom to it. A few of the other members of the group smiled at the comment.