Want to be happy? Be grateful
https://www.ted.com/talks/david_steindl_rast
"We all know quite a lot of people who have everything it takes to be happy and they are not happy, because they want something else or want more of the same... and we all know people who have lots of misfortune and they are deeply happy. They radiate happiness. Why? Because they're grateful"
- David Steindl-Rast