'Lesson five: Assume voluntary discomfort. This is one of the central mindsets that may have the biggest impact in your daily life. Actively seek to make life difficult for yourself. Dissatisfaction in our daily lives is the result of a certain level of entitlement. We just expect things to always run smoothly. According to the stoic philosophy, just because you can afford yourself a nice meal every single day, doesn’t mean you should do so. It builds perseverance and grit, but more importantly it demolishes the sense of entitlement that chips away at your daily happiness. So by experiencing discomfort, you will walk away stronger by realizing that you experienced what you dreaded and suffered no ill effects from it."