"Innocent pleasures in moderation can provide relaxation for the body and mind and can foster family and other relationships. But pleasure, per se, offers no deep, lasting satisfaction or sense of fulfillment. The pleasure-centered person, too soon bored with each succeeding level of "fun," constantly cries for more and more. So the next new pleasure has to be bigger and better, more exciting, with a bigger "high." A person in this state becomes almost entirely narcissistic, interpreting all of life in terms of the pleasure it provides to the self here and now."

Source: Stephen R. Covey (1994). “Daily Reflections for Highly Effective People: Living THE SEVEN HABITS OF HIGHLY SUCCESSFUL PEOPLE Every Day”, p.155, Simon and Schuster