The 8th Habit, then, is not about adding one more habit to the 7 - one that somehow got forgotten. It's about seeing and harnessing the power of a third dimension to the 7 Habits that meets the central challenge of the new Knowledge Worker Age. The 8th Habit is to Find Your Voice and Inspire Others to Find Theirs.
The 7 Habits of Highly Effective People Personal Workbook (ed. Simon and Schuster, 2008) - ISBN: 9781847375179