As dry leaves that before the wild hurricane fly, when they meet with an obstacle, mount to the sky. So up to the house-top the coursers they flew, with the sleigh full of toys, and St. Nicholas too.
Bio: Peter Michael Senge is an American systems scientist who is a senior lecturer at the MIT Sloan School of Management, co-faculty at the New England Complex Systems Institute, and the founder of the Society for Organizational Learning.