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.
Source: The 8th Habit: From Effectiveness to Greatness, Pages: 4-5
Contributed by: ~C4Chaos