“This is the habit of self-renewal, which has four elements. The first is mental, which includes reading, visualizing, planning and writing. The second is spiritual, which means value clarification and commitment, study and meditation. Third is social / emotional, which involves service, empathy, synergy and intrinsic security. Finally, the physical element includes exercise, nutrition and stress management.”

– Stephen Covey, The Seven Habits of Highly Effective People