If you want to change how you see your problems, you have to change what you value and/or how you measure failure/success. (Location 1188)
Imagine that somebody puts a gun to your head and tells you that you have to run 26.2 miles in under five hours, or else he’ll kill you and your entire family. That would suck. Now imagine that you bought nice shoes and running gear, trained religiously for months, and completed your first marathon with all of your closest family and friends cheering you on at the finish line. That could potentially be one of the proudest moments of your life. Exact same 26.2 miles. Exact same person running them. Exact same pain coursing through your exact same legs. But when you chose it freely and prepared for it, it was a glorious and important milestone in your life. When it was forced upon you against your will, it was one of the most terrifying and painful experiences of your life. Often the only difference between a problem being painful or being powerful is a sense that we chose it, and that we are responsible for it. (Location 1328)