An excerpt from Stephen Covey’s Big Rock story: A time management guru was speaking to a group of type “A” personalities. He placed a wide-mouth gallon jar on the table in front of him. Next to the jar was a collection of fist-sized rocks. He carefully filled the jar with the big rocks, until he could fit no more. He asked the group, “Is the jar full?” Everyone responded, “Yes.” He then pulled a large...