The waking have one common world, but the sleeping turn aside each into a world of his own. - Arianna Huffington

In December 2013, a tourist in Melbourne fell off a pier and plunged into the sea while checking Facebook on her phone.

Para los estoicos, la forma más segura de encontrar la felicidad sería, por tanto, buscarla en lo único sobre lo que tenemos control: nuestro mundo interior. Todo lo que existe fuera de nosotros puede desaparecer, así que ¿cómo podemos confiarle nuestra felicidad futura y nuestro bienestar?

Like airlines, we routinely overbook ourselves, fearful of any unused capacity, confident that we can fit everything in. We fear that if we don’t cram as much as possible into our day, we might miss out on something fabulous, important, special, or career advancing. But there are no rollover minutes in life. We don’t get to keep all that time we “save.” It’s actually a very costly way to live.