Recent studies have added to the body of knowledge regarding happiness—often a rather misunderstood concept. For some, happiness means “feeling high” all the time, which likely is way off the mark. As pointed out by Daniel J. Levitin in The Organized Mind, individuals who are happy are not those who have “more.” Rather they are people who are happy with what they already have. They regularly engage in what he calls satisficing—“all of the time.” Instead of wishing for what they do not have or comparing what they have with what they perceive others have, they are thankful for what they already have (even as they pursue their goals and dreams). Oprah Winfrey put it this way: "Be thankful for what you have; you'll end up having more. If you concentrate on what you don't have, you will never, ever have enough."