The document summarizes the story "Who Moved My Cheese" by Dr. Spencer Johnson. It describes four characters - two mice (Sniff and Scurry) and two little people (Hem and Haw) - who live in a maze and eat cheese. One day, they discover the cheese is gone. The mice immediately search for new cheese while Hem refuses to accept the change. Eventually, Haw finds new cheese and learns to accept and anticipate change. The key lessons are that change happens, we must be ready to adapt to change quickly, and treat change as an adventure.