" What does it all mean? You decide. Your future—how you feel about it, yourself, and everything else—follows from the decisions you make, the priorities you develop, and the perspective you see things through. Great unanswered questions plague us, century after century. Why are we here? What are we supposed to be doing? What does this all matter? Answers to these questions are so very hard to come by because the truth lies not within someone else, but within you. You have been given life, and with it you have been given the opportunity to define it. Your life’s path and purpose will be drawn on a map created by you. "

― , The 100 Simple Secrets of Happy People: What Scientists Have Learned and How You Can Use It