Oliver Burkeman, The Antidote: Happiness For People Who Can't Stand Positive Thinking Quotes
Part of the problem with positive thinking, and many related approaches to happiness, is exactly this desire to reduce big questions to one-size-fits-all self-help tricks or ten point plans.
...no matter how much success you may experience in life, your eventual story - no offence intended - will be one of failure. Your bodily organs will fail, and you'll die.