JOHN VESPASIAN is the author of ten books about rational living, including "When everything fails, try this" (2009), "Rationality is the way to happiness" (2009), "The philosophy of builders" (2010), "The 10 principles of rational living" (2012), "Rational living, rational working" (2013), "Consistency: The key to permanent stress relief" (2014), "On becoming unbreakable" (2015), "Thriving in difficult times" (2016), "Sequentiality: The amazing power of finding the right sequence of steps" (2017) and "Undisrupted: How highly-effective people deal with disruptions" (2019).