Is the drinking glass of your life half full or half empty?

Neither.

When you feel gratitude as a way of life your glass is always entirely full.

I recently read an article on how to achieve happiness. It cited pivotal research by Daniel Kahneman, winner of the 2002 Nobel Memorial Prize in Economic Sciences. Kahneman concluded that beyond a certain level of income (the study said $75,000), self-reported happiness does not increase with greater income. So happiness does not necessarily depend...