Rock Pebbles and Sand

A teacher walks into a classroom and sets a glass jar on the table. He silently places 2-inch rocks in the jar until no more can fit. He asks the class if the jar is full and they agree it is. “Really,” He pulls out a pile of small pebbles, adding them to the jar, shaking it slightly until they fill the spaces between the rocks. He asks again, “Is the jar full?” They agree. So next, he adds a scoop of sand to the jar, filling the space between the pebbles and asks the question again. This time, the class is divided, some feeling that the jar is obviously full, but others are wary of another trick. So he grabs a pitcher of water and fills the jar to the brim, saying, “If this jar is your life, what does this experiment show you?” A bold student replies, “No matter how busy you think you are, you can always take on more.” “That is one view,” he replies. Then he looks out at the class making eye contact with everyone, “The rocks represent the BIG things in your life – what you will value at the end of your life – your family, your partner, your health, fulfilling your hopes and dreams. The pebbles are the other things in your life that give it meaning, like your job, your house, your hobbies, your friendships. The sand and water represent the ‘small stuff’ that fills our time, like watching TV or running errands.” Looking out at the class again, he asks, “Can you see what would happen if I started with the sand or the pebbles?”