Thanks for the recommendation.

Another good book on personal productivity is The Now Habit: A Strategic Program for Overcoming Procrastination and Enjoying Guilt-Free Play. It goes over how workaholics and procrastinators have many of the same problems, and how important it is to schedule personal time.

I really enjoyed learning about this concept. Simon did a very good interview on Mixergy if anyone wants to go deeper: http://mixergy.com/start-with-why-simon-sinek/

As a new entrepreneur experimenting with pitching my product, I've seen how the why is the most important part. And meeting other entrepreneurs, I've realized that the pitches I don't respond to are the ones that don't contain the why. This is a simple but powerful concept.